9990524 has 6 divisors (see below), whose sum is σ = 17483424. Its totient is φ = 4995260.

The previous prime is 9990499. The next prime is 9990551. The reversal of 9990524 is 4250999.

9990524 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 1248812 + ... + 1248819.

It is an arithmetic number, because the mean of its divisors is an integer number (2913904).

Almost surely, 2^9990524 is an apocalyptic number.

It is an amenable number.

9990524 is a deficient number, since it is larger than the sum of its proper divisors (7492900).

9990524 is a wasteful number, since it uses less digits than its factorization.

9990524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2497635 (or 2497633 counting only the distinct ones).

The product of its (nonzero) digits is 29160, while the sum is 38.

The square root of 9990524 is about 3160.7790179005. The cubic root of 9990524 is about 215.3753960863.

The spelling of 9990524 in words is "nine million, nine hundred ninety thousand, five hundred twenty-four".