1083528889 has 3 divisors (see below), whose sum is σ = 1083561807. Its totient is φ = 1083495972.

The previous prime is 1083528883. The next prime is 1083528893. The reversal of 1083528889 is 9888253801.

It is a happy number.

The square root of 1083528889 is 32917.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 9888253801 = 29 ⋅340974269.

It can be written as a sum of positive squares in only one way, i.e., 585882025 + 497646864 = 24205^2 + 22308^2 .

It is not a de Polignac number, because 1083528889 - 2²¹ = 1081431737 is a prime.

It is a super-4 number, since 4×1083528889⁴ (a number of 37 digits) contains 4444 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1083528883) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 16459 + ... + 49375.

It is an arithmetic number, because the mean of its divisors is an integer number (361187269).

Almost surely, 2^1083528889 is an apocalyptic number.

1083528889 is the 32917-th square number.

1083528889 is the 16459-th centered octagonal number.

It is an amenable number.

1083528889 is a deficient number, since it is larger than the sum of its proper divisors (32918).

1083528889 is an frugal number, since it uses more digits than its factorization.

1083528889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65834 (or 32917 counting only the distinct ones).

The product of its (nonzero) digits is 1105920, while the sum is 52.

The cubic root of 1083528889 is about 1027.1018189058.

The spelling of 1083528889 in words is "one billion, eighty-three million, five hundred twenty-eight thousand, eight hundred eighty-nine".