90851608 has 8 divisors (see below), whose sum is σ = 170346780. Its totient is φ = 45425800.

The previous prime is 90851603. The next prime is 90851617. The reversal of 90851608 is 80615809.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90851603) 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 as a sum of consecutive naturals, namely, 5678218 + ... + 5678233.

Almost surely, 2^90851608 is an apocalyptic number.

It is an amenable number.

90851608 is a deficient number, since it is larger than the sum of its proper divisors (79495172).

90851608 is a wasteful number, since it uses less digits than its factorization.

90851608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11356457 (or 11356453 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 37.

The square root of 90851608 is about 9531.6109866066. The cubic root of 90851608 is about 449.5495212088.

The spelling of 90851608 in words is "ninety million, eight hundred fifty-one thousand, six hundred eight".