90879380 has 24 divisors (see below), whose sum is σ = 192634848. Its totient is φ = 36011168.

The previous prime is 90879353. The next prime is 90879401. The reversal of 90879380 is 8397809.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19094 + ... + 23373.

It is an arithmetic number, because the mean of its divisors is an integer number (8026452).

Almost surely, 2^90879380 is an apocalyptic number.

It is an amenable number.

90879380 is an abundant number, since it is smaller than the sum of its proper divisors (101755468).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

90879380 is a wasteful number, since it uses less digits than its factorization.

90879380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42583 (or 42581 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 44.

The square root of 90879380 is about 9533.0677119173. The cubic root of 90879380 is about 449.5953234338.

The spelling of 90879380 in words is "ninety million, eight hundred seventy-nine thousand, three hundred eighty".