90718512 has 20 divisors (see below), whose sum is σ = 234356280. Its totient is φ = 30239488.

The previous prime is 90718451. The next prime is 90718543. The reversal of 90718512 is 21581709.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 944937 + ... + 945032.

It is an arithmetic number, because the mean of its divisors is an integer number (11717814).

Almost surely, 2^90718512 is an apocalyptic number.

It is an amenable number.

90718512 is an abundant number, since it is smaller than the sum of its proper divisors (143637768).

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

90718512 is a wasteful number, since it uses less digits than its factorization.

90718512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1889980 (or 1889974 counting only the distinct ones).

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

The square root of 90718512 is about 9524.6266068545. The cubic root of 90718512 is about 449.3298865525.

The spelling of 90718512 in words is "ninety million, seven hundred eighteen thousand, five hundred twelve".