1086823089 has 81 divisors (see below), whose sum is σ = 1841556171. Its totient is φ = 640878480.

The previous prime is 1086823063. The next prime is 1086823091. The reversal of 1086823089 is 9803286801.

The square root of 1086823089 is 32967.

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

It can be written as a sum of positive squares in only one way, i.e., 972504225 + 114318864 = 31185^2 + 10692^2 .

It is a tau number, because it is divible by the number of its divisors (81).

It is not a de Polignac number, because 1086823089 - 2⁹ = 1086822577 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1086828089) by changing a digit.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 29373579 + ... + 29373615.

Almost surely, 2^1086823089 is an apocalyptic number.

1086823089 is the 32967-th square number.

1086823089 is the 16484-th centered octagonal number.

It is an amenable number.

1086823089 is a deficient number, since it is larger than the sum of its proper divisors (754733082).

1086823089 is an frugal number, since it uses more digits than its factorization.

1086823089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120 (or 51 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 45.

The cubic root of 1086823089 is about 1028.1416483466.

The spelling of 1086823089 in words is "one billion, eighty-six million, eight hundred twenty-three thousand, eighty-nine".