90479013 has 4 divisors (see below), whose sum is σ = 120638688. Its totient is φ = 60319340.

The previous prime is 90478967. The next prime is 90479021. The reversal of 90479013 is 31097409.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 90479013 - 2⁹ = 90478501 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90479513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15079833 + ... + 15079838.

It is an arithmetic number, because the mean of its divisors is an integer number (30159672).

Almost surely, 2^90479013 is an apocalyptic number.

It is an amenable number.

90479013 is a deficient number, since it is larger than the sum of its proper divisors (30159675).

90479013 is a wasteful number, since it uses less digits than its factorization.

90479013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30159674.

The product of its (nonzero) digits is 6804, while the sum is 33.

The square root of 90479013 is about 9512.0456790325. The cubic root of 90479013 is about 448.9341242600.

The spelling of 90479013 in words is "ninety million, four hundred seventy-nine thousand, thirteen".