90906284 has 12 divisors (see below), whose sum is σ = 181812624. Its totient is φ = 38959824.

The previous prime is 90906269. The next prime is 90906301. The reversal of 90906284 is 48260909.

90906284 is an admirable number.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

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, 1623299 + ... + 1623354.

It is an arithmetic number, because the mean of its divisors is an integer number (15151052).

Almost surely, 2^90906284 is an apocalyptic number.

It is an amenable number.

90906284 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

90906284 is a wasteful number, since it uses less digits than its factorization.

90906284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3246664 (or 3246662 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 90906284 is about 9534.4786957652. The cubic root of 90906284 is about 449.6396852357.

The spelling of 90906284 in words is "ninety million, nine hundred six thousand, two hundred eighty-four".