90220179 has 16 divisors (see below), whose sum is σ = 137998080. Its totient is φ = 51359520.

The previous prime is 90220127. The next prime is 90220181. The reversal of 90220179 is 97102209.

It is not a de Polignac number, because 90220179 - 2¹¹ = 90218131 is a prime.

It is not an unprimeable number, because it can be changed into a prime (90220079) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2337 + ... + 13634.

It is an arithmetic number, because the mean of its divisors is an integer number (8624880).

Almost surely, 2^90220179 is an apocalyptic number.

90220179 is a deficient number, since it is larger than the sum of its proper divisors (47777901).

90220179 is a wasteful number, since it uses less digits than its factorization.

90220179 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16250.

The product of its (nonzero) digits is 2268, while the sum is 30.

The square root of 90220179 is about 9498.4303440095. The cubic root of 90220179 is about 448.5056256433.

The spelling of 90220179 in words is "ninety million, two hundred twenty thousand, one hundred seventy-nine".