90757660 has 24 divisors (see below), whose sum is σ = 217818720. Its totient is φ = 31116864.

The previous prime is 90757657. The next prime is 90757663. The reversal of 90757660 is 6675709.

It is an interprime number because it is at equal distance from previous prime (90757657) and next prime (90757663).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90757663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 323995 + ... + 324274.

It is an arithmetic number, because the mean of its divisors is an integer number (9075780).

Almost surely, 2^90757660 is an apocalyptic number.

It is an amenable number.

90757660 is an abundant number, since it is smaller than the sum of its proper divisors (127061060).

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

90757660 is a wasteful number, since it uses less digits than its factorization.

90757660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 648285 (or 648283 counting only the distinct ones).

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

The square root of 90757660 is about 9526.6814788782. The cubic root of 90757660 is about 449.3945107634.

The spelling of 90757660 in words is "ninety million, seven hundred fifty-seven thousand, six hundred sixty".