90279113 has 4 divisors (see below), whose sum is σ = 90352080. Its totient is φ = 90206148.

The previous prime is 90279103. The next prime is 90279139. The reversal of 90279113 is 31197209.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 31197209 = 241 ⋅129449.

It is a cyclic number.

It is not a de Polignac number, because 90279113 - 2²² = 86084809 is a prime.

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 90279113.

It is not an unprimeable number, because it can be changed into a prime (90279103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34595 + ... + 37112.

It is an arithmetic number, because the mean of its divisors is an integer number (22588020).

Almost surely, 2^90279113 is an apocalyptic number.

It is an amenable number.

90279113 is a deficient number, since it is larger than the sum of its proper divisors (72967).

90279113 is a wasteful number, since it uses less digits than its factorization.

90279113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72966.

The product of its (nonzero) digits is 3402, while the sum is 32.

The square root of 90279113 is about 9501.5321396078. The cubic root of 90279113 is about 448.6032626226.

The spelling of 90279113 in words is "ninety million, two hundred seventy-nine thousand, one hundred thirteen".