90597065 has 32 divisors (see below), whose sum is σ = 120911616. Its totient is φ = 64753920.

The previous prime is 90597061. The next prime is 90597071. The reversal of 90597065 is 56079509.

It is not a de Polignac number, because 90597065 - 2² = 90597061 is a prime.

It is a super-2 number, since 2×90597065² = 16415656373228450, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90597061) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 309059 + ... + 309351.

It is an arithmetic number, because the mean of its divisors is an integer number (3778488).

Almost surely, 2^90597065 is an apocalyptic number.

It is an amenable number.

90597065 is a deficient number, since it is larger than the sum of its proper divisors (30314551).

90597065 is a wasteful number, since it uses less digits than its factorization.

90597065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 449.

The product of its (nonzero) digits is 85050, while the sum is 41.

The square root of 90597065 is about 9518.2490511648. The cubic root of 90597065 is about 449.1292875240.

The spelling of 90597065 in words is "ninety million, five hundred ninety-seven thousand, sixty-five".