90765080 has 32 divisors (see below), whose sum is σ = 233396640. Its totient is φ = 31119360.

The previous prime is 90765079. The next prime is 90765089. The reversal of 90765080 is 8056709.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 90765080.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90765089) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 161801 + ... + 162360.

It is an arithmetic number, because the mean of its divisors is an integer number (7293645).

Almost surely, 2^90765080 is an apocalyptic number.

It is an amenable number.

90765080 is an abundant number, since it is smaller than the sum of its proper divisors (142631560).

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

90765080 is a wasteful number, since it uses less digits than its factorization.

90765080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 324179 (or 324175 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 35.

The square root of 90765080 is about 9527.0709034834. The cubic root of 90765080 is about 449.4067573565.

The spelling of 90765080 in words is "ninety million, seven hundred sixty-five thousand, eighty".