90613372 has 12 divisors (see below), whose sum is σ = 163688896. Its totient is φ = 43845120.

The previous prime is 90613361. The next prime is 90613373. The reversal of 90613372 is 27331609.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90613373) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 365253 + ... + 365500.

Almost surely, 2^90613372 is an apocalyptic number.

It is an amenable number.

90613372 is a deficient number, since it is larger than the sum of its proper divisors (73075524).

90613372 is a wasteful number, since it uses less digits than its factorization.

90613372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 730788 (or 730786 counting only the distinct ones).

The product of its (nonzero) digits is 6804, while the sum is 31.

The square root of 90613372 is about 9519.1056302575. The cubic root of 90613372 is about 449.1562328852.

The spelling of 90613372 in words is "ninety million, six hundred thirteen thousand, three hundred seventy-two".