90901108 has 12 divisors (see below), whose sum is σ = 168434532. Its totient is φ = 42776960.

The previous prime is 90901093. The next prime is 90901171. The reversal of 90901108 is 80110909.

It can be written as a sum of positive squares in 2 ways, for example, as 39463524 + 51437584 = 6282^2 + 7172^2 .

It is a super-2 number, since 2×90901108² = 16526022871255328, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 668323 + ... + 668458.

It is an arithmetic number, because the mean of its divisors is an integer number (14036211).

Almost surely, 2^90901108 is an apocalyptic number.

It is an amenable number.

90901108 is a deficient number, since it is larger than the sum of its proper divisors (77533424).

90901108 is a wasteful number, since it uses less digits than its factorization.

90901108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1336802 (or 1336800 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 28.

The square root of 90901108 is about 9534.2072559810. The cubic root of 90901108 is about 449.6311512485.

The spelling of 90901108 in words is "ninety million, nine hundred one thousand, one hundred eight".