90799071 has 16 divisors (see below), whose sum is σ = 133288320. Its totient is φ = 54522720.

The previous prime is 90799063. The next prime is 90799099. The reversal of 90799071 is 17099709.

It is not a de Polignac number, because 90799071 - 2³ = 90799063 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90729071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9025 + ... + 16218.

It is an arithmetic number, because the mean of its divisors is an integer number (8330520).

Almost surely, 2^90799071 is an apocalyptic number.

90799071 is a deficient number, since it is larger than the sum of its proper divisors (42489249).

90799071 is a wasteful number, since it uses less digits than its factorization.

90799071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25366.

The product of its (nonzero) digits is 35721, while the sum is 42.

The square root of 90799071 is about 9528.8546531050. The cubic root of 90799071 is about 449.4628504361.

The spelling of 90799071 in words is "ninety million, seven hundred ninety-nine thousand, seventy-one".