90979357 has 32 divisors (see below), whose sum is σ = 111513600. Its totient is φ = 72612288.

The previous prime is 90979349. The next prime is 90979381. The reversal of 90979357 is 75397909.

It is not a de Polignac number, because 90979357 - 2³ = 90979349 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 90979357.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90979387) 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, 834619 + ... + 834727.

It is an arithmetic number, because the mean of its divisors is an integer number (3484800).

Almost surely, 2^90979357 is an apocalyptic number.

It is an amenable number.

90979357 is a deficient number, since it is larger than the sum of its proper divisors (20534243).

90979357 is a wasteful number, since it uses less digits than its factorization.

90979357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265.

The product of its (nonzero) digits is 535815, while the sum is 49.

The square root of 90979357 is about 9538.3099656071. The cubic root of 90979357 is about 449.7601305982.

The spelling of 90979357 in words is "ninety million, nine hundred seventy-nine thousand, three hundred fifty-seven".