90866012 has 12 divisors (see below), whose sum is σ = 160423536. Its totient is φ = 45030720.

The previous prime is 90865967. The next prime is 90866021. The reversal of 90866012 is 21066809.

It is a self number, because there is not a number n which added to its sum of digits gives 90866012.

It is a congruent number.

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, 100064 + ... + 100967.

It is an arithmetic number, because the mean of its divisors is an integer number (13368628).

Almost surely, 2^90866012 is an apocalyptic number.

It is an amenable number.

90866012 is a deficient number, since it is larger than the sum of its proper divisors (69557524).

90866012 is a wasteful number, since it uses less digits than its factorization.

90866012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201148 (or 201146 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 90866012 is about 9532.3665477152. The cubic root of 90866012 is about 449.5732777839.

The spelling of 90866012 in words is "ninety million, eight hundred sixty-six thousand, twelve".