90596881 has 4 divisors (see below), whose sum is σ = 90849600. Its totient is φ = 90344164.

The previous prime is 90596873. The next prime is 90596897. The reversal of 90596881 is 18869509.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 18869509 = 149 ⋅126641.

It is a cyclic number.

It is not a de Polignac number, because 90596881 - 2³ = 90596873 is a prime.

It is a super-2 number, since 2×90596881² = 16415589693856322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90596081) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 125821 + ... + 126538.

It is an arithmetic number, because the mean of its divisors is an integer number (22712400).

Almost surely, 2^90596881 is an apocalyptic number.

It is an amenable number.

90596881 is a deficient number, since it is larger than the sum of its proper divisors (252719).

90596881 is a wasteful number, since it uses less digits than its factorization.

90596881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252718.

The product of its (nonzero) digits is 155520, while the sum is 46.

The square root of 90596881 is about 9518.2393855166. The cubic root of 90596881 is about 449.1289834676.

The spelling of 90596881 in words is "ninety million, five hundred ninety-six thousand, eight hundred eighty-one".