90324879 has 32 divisors (see below), whose sum is σ = 133747200. Its totient is φ = 53988480.

The previous prime is 90324877. The next prime is 90324901. The reversal of 90324879 is 97842309.

It is not a de Polignac number, because 90324879 - 2¹ = 90324877 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 90324879.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90324877) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 87094 + ... + 88124.

It is an arithmetic number, because the mean of its divisors is an integer number (4179600).

Almost surely, 2^90324879 is an apocalyptic number.

90324879 is a deficient number, since it is larger than the sum of its proper divisors (43422321).

90324879 is a wasteful number, since it uses less digits than its factorization.

90324879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1135.

The product of its (nonzero) digits is 108864, while the sum is 42.

The square root of 90324879 is about 9503.9401828926. The cubic root of 90324879 is about 448.6790546411.

The spelling of 90324879 in words is "ninety million, three hundred twenty-four thousand, eight hundred seventy-nine".