90124792 has 8 divisors (see below), whose sum is σ = 168984000. Its totient is φ = 45062392.

The previous prime is 90124777. The next prime is 90124799. The reversal of 90124792 is 29742109.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90124799) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5632792 + ... + 5632807.

It is an arithmetic number, because the mean of its divisors is an integer number (21123000).

Almost surely, 2^90124792 is an apocalyptic number.

It is an amenable number.

90124792 is a deficient number, since it is larger than the sum of its proper divisors (78859208).

90124792 is a wasteful number, since it uses less digits than its factorization.

90124792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11265605 (or 11265601 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 90124792 is about 9493.4078180599. The cubic root of 90124792 is about 448.3475062046.

The spelling of 90124792 in words is "ninety million, one hundred twenty-four thousand, seven hundred ninety-two".