90465690 has 32 divisors (see below), whose sum is σ = 248135040. Its totient is φ = 20677824.

The previous prime is 90465689. The next prime is 90465709. The reversal of 90465690 is 9656409.

It is a super-2 number, since 2×90465690² = 16368082134352200, which contains 22 as substring.

It is a Curzon 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 15 ways as a sum of consecutive naturals, for example, 215185 + ... + 215604.

It is an arithmetic number, because the mean of its divisors is an integer number (7754220).

Almost surely, 2^90465690 is an apocalyptic number.

90465690 is an abundant number, since it is smaller than the sum of its proper divisors (157669350).

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

90465690 is a wasteful number, since it uses less digits than its factorization.

90465690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 430806.

The product of its (nonzero) digits is 58320, while the sum is 39.

The square root of 90465690 is about 9511.3453307090. The cubic root of 90465690 is about 448.9120880524.

The spelling of 90465690 in words is "ninety million, four hundred sixty-five thousand, six hundred ninety".