90747232 has 12 divisors (see below), whose sum is σ = 178658676. Its totient is φ = 45373600.

The previous prime is 90747229. The next prime is 90747263. The reversal of 90747232 is 23274709.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

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, 1417894 + ... + 1417957.

It is an arithmetic number, because the mean of its divisors is an integer number (14888223).

Almost surely, 2^90747232 is an apocalyptic number.

It is an amenable number.

90747232 is a deficient number, since it is larger than the sum of its proper divisors (87911444).

90747232 is a wasteful number, since it uses less digits than its factorization.

90747232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2835861 (or 2835853 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 34.

The square root of 90747232 is about 9526.1341581987. The cubic root of 90747232 is about 449.3772983854.

The spelling of 90747232 in words is "ninety million, seven hundred forty-seven thousand, two hundred thirty-two".