90065776 has 20 divisors (see below), whose sum is σ = 183687400. Its totient is φ = 42662592.

The previous prime is 90065753. The next prime is 90065777. The reversal of 90065776 is 67756009.

It is a super-2 number, since 2×90065776² = 16223688012964352, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90065777) 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, 147831 + ... + 148438.

It is an arithmetic number, because the mean of its divisors is an integer number (9184370).

Almost surely, 2^90065776 is an apocalyptic number.

It is an amenable number.

90065776 is an abundant number, since it is smaller than the sum of its proper divisors (93621624).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

90065776 is a wasteful number, since it uses less digits than its factorization.

90065776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296296 (or 296290 counting only the distinct ones).

The product of its (nonzero) digits is 79380, while the sum is 40.

The square root of 90065776 is about 9490.2990469215. The cubic root of 90065776 is about 448.2496217289.

The spelling of 90065776 in words is "ninety million, sixty-five thousand, seven hundred seventy-six".