90065764 has 12 divisors (see below), whose sum is σ = 163050300. Its totient is φ = 43479968.

The previous prime is 90065753. The next prime is 90065777. The reversal of 90065764 is 46756009.

It can be written as a sum of positive squares in 2 ways, for example, as 43033600 + 47032164 = 6560^2 + 6858^2 .

It is a super-2 number, since 2×90065764² = 16223683689807392, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 388099 + ... + 388330.

It is an arithmetic number, because the mean of its divisors is an integer number (13587525).

Almost surely, 2^90065764 is an apocalyptic number.

It is an amenable number.

90065764 is a deficient number, since it is larger than the sum of its proper divisors (72984536).

90065764 is a wasteful number, since it uses less digits than its factorization.

90065764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 776462 (or 776460 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 37.

The square root of 90065764 is about 9490.2984146970. The cubic root of 90065764 is about 448.2496018213.

The spelling of 90065764 in words is "ninety million, sixty-five thousand, seven hundred sixty-four".