1070402089 has 3 divisors (see below), whose sum is σ = 1070434807. Its totient is φ = 1070369372.

The previous prime is 1070402087. The next prime is 1070402149. The reversal of 1070402089 is 9802040701.

The square root of 1070402089 is 32717.

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.

It can be written as a sum of positive squares in only one way, i.e., 983763225 + 86638864 = 31365^2 + 9308^2 .

It is not a de Polignac number, because 1070402089 - 2¹ = 1070402087 is a prime.

It is a super-2 number, since 2×1070402089² = 2291521264271127842, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1070402089.

It is not an unprimeable number, because it can be changed into a prime (1070402087) 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, 16359 + ... + 49075.

Almost surely, 2^1070402089 is an apocalyptic number.

1070402089 is the 32717-th square number.

1070402089 is the 16359-th centered octagonal number.

It is an amenable number.

1070402089 is a deficient number, since it is larger than the sum of its proper divisors (32718).

1070402089 is an frugal number, since it uses more digits than its factorization.

1070402089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65434 (or 32717 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 31.

The cubic root of 1070402089 is about 1022.9372241973.

The spelling of 1070402089 in words is "one billion, seventy million, four hundred two thousand, eighty-nine".