90959679 has 20 divisors (see below), whose sum is σ = 137748336. Its totient is φ = 59805216.

The previous prime is 90959647. The next prime is 90959681. The reversal of 90959679 is 97695909.

It is not a de Polignac number, because 90959679 - 2⁵ = 90959647 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90959629) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1779 + ... + 13604.

Almost surely, 2^90959679 is an apocalyptic number.

90959679 is a deficient number, since it is larger than the sum of its proper divisors (46788657).

90959679 is a wasteful number, since it uses less digits than its factorization.

90959679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15468 (or 15459 counting only the distinct ones).

The product of its (nonzero) digits is 1377810, while the sum is 54.

The square root of 90959679 is about 9537.2783853676. The cubic root of 90959679 is about 449.7277019305.

The spelling of 90959679 in words is "ninety million, nine hundred fifty-nine thousand, six hundred seventy-nine".