90975079 has 16 divisors (see below), whose sum is σ = 100245600. Its totient is φ = 82051200.

The previous prime is 90975067. The next prime is 90975089. The reversal of 90975079 is 97057909.

It is a cyclic number.

It is not a de Polignac number, because 90975079 - 2⁵ = 90975047 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90975089) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 129429 + ... + 130129.

It is an arithmetic number, because the mean of its divisors is an integer number (6265350).

Almost surely, 2^90975079 is an apocalyptic number.

90975079 is a deficient number, since it is larger than the sum of its proper divisors (9270521).

90975079 is a wasteful number, since it uses less digits than its factorization.

90975079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 930.

The product of its (nonzero) digits is 178605, while the sum is 46.

The square root of 90975079 is about 9538.0857094073. The cubic root of 90975079 is about 449.7530809990.

The spelling of 90975079 in words is "ninety million, nine hundred seventy-five thousand, seventy-nine".