90623924 has 6 divisors (see below), whose sum is σ = 158591874. Its totient is φ = 45311960.

The previous prime is 90623891. The next prime is 90623947. The reversal of 90623924 is 42932609.

It can be written as a sum of positive squares in only one way, i.e., 78499600 + 12124324 = 8860^2 + 3482^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11327987 + ... + 11327994.

It is an arithmetic number, because the mean of its divisors is an integer number (26431979).

Almost surely, 2^90623924 is an apocalyptic number.

It is an amenable number.

90623924 is a deficient number, since it is larger than the sum of its proper divisors (67967950).

90623924 is a wasteful number, since it uses less digits than its factorization.

90623924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22655985 (or 22655983 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 35.

The square root of 90623924 is about 9519.6598678734. The cubic root of 90623924 is about 449.1736670766.

The spelling of 90623924 in words is "ninety million, six hundred twenty-three thousand, nine hundred twenty-four".