90806284 has 12 divisors (see below), whose sum is σ = 159007464. Its totient is φ = 45375584.

The previous prime is 90806281. The next prime is 90806293. The reversal of 90806284 is 48260809.

It is not an unprimeable number, because it can be changed into a prime (90806281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1719 + ... + 13585.

It is an arithmetic number, because the mean of its divisors is an integer number (13250622).

Almost surely, 2^90806284 is an apocalyptic number.

It is an amenable number.

90806284 is a deficient number, since it is larger than the sum of its proper divisors (68201180).

90806284 is a wasteful number, since it uses less digits than its factorization.

90806284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13784 (or 13782 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 37.

The square root of 90806284 is about 9529.2331275922. The cubic root of 90806284 is about 449.4747517682.

The spelling of 90806284 in words is "ninety million, eight hundred six thousand, two hundred eighty-four".