90086012 has 6 divisors (see below), whose sum is σ = 157650528. Its totient is φ = 45043004.

The previous prime is 90085997. The next prime is 90086021. The reversal of 90086012 is 21068009.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11260748 + ... + 11260755.

It is an arithmetic number, because the mean of its divisors is an integer number (26275088).

Almost surely, 2^90086012 is an apocalyptic number.

It is an amenable number.

90086012 is a deficient number, since it is larger than the sum of its proper divisors (67564516).

90086012 is a wasteful number, since it uses less digits than its factorization.

90086012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22521507 (or 22521505 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 90086012 is about 9491.3651283680. The cubic root of 90086012 is about 448.2831901589.

The spelling of 90086012 in words is "ninety million, eighty-six thousand, twelve".