90663724 has 12 divisors (see below), whose sum is σ = 158878048. Its totient is φ = 45270000.

The previous prime is 90663701. The next prime is 90663731. The reversal of 90663724 is 42736609.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12087 + ... + 18094.

Almost surely, 2^90663724 is an apocalyptic number.

It is an amenable number.

90663724 is a deficient number, since it is larger than the sum of its proper divisors (68214324).

90663724 is a wasteful number, since it uses less digits than its factorization.

90663724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30936 (or 30934 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 37.

The square root of 90663724 is about 9521.7500492294. The cubic root of 90663724 is about 449.2394131280.

The spelling of 90663724 in words is "ninety million, six hundred sixty-three thousand, seven hundred twenty-four".