90297012 has 24 divisors (see below), whose sum is σ = 226900576. Its totient is φ = 27783648.

The previous prime is 90297007. The next prime is 90297023. The reversal of 90297012 is 21079209.

It is a super-2 number, since 2×90297012² = 16307100752256288, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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, 289258 + ... + 289569.

Almost surely, 2^90297012 is an apocalyptic number.

It is an amenable number.

90297012 is an abundant number, since it is smaller than the sum of its proper divisors (136603564).

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

90297012 is a wasteful number, since it uses less digits than its factorization.

90297012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 578847 (or 578845 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 30.

The square root of 90297012 is about 9502.4739936503. The cubic root of 90297012 is about 448.6329077935.

The spelling of 90297012 in words is "ninety million, two hundred ninety-seven thousand, twelve".