90518712 has 32 divisors (see below), whose sum is σ = 226554000. Its totient is φ = 30138624.

The previous prime is 90518711. The next prime is 90518713. The reversal of 90518712 is 21781509.

It is an interprime number because it is at equal distance from previous prime (90518711) and next prime (90518713).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90518711) 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, 28164 + ... + 31212.

Almost surely, 2^90518712 is an apocalyptic number.

It is an amenable number.

90518712 is an abundant number, since it is smaller than the sum of its proper divisors (136035288).

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

90518712 is a wasteful number, since it uses less digits than its factorization.

90518712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4295 (or 4291 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 33.

The square root of 90518712 is about 9514.1322252741. The cubic root of 90518712 is about 448.9997734798. Note that the first 3 decimals are identical.

The spelling of 90518712 in words is "ninety million, five hundred eighteen thousand, seven hundred twelve".