99179479 has 32 divisors (see below), whose sum is σ = 124675200. Its totient is φ = 78575616.

The previous prime is 99179459. The next prime is 99179489. The reversal of 99179479 is 97497199.

It is not a de Polignac number, because 99179479 - 2¹⁷ = 99048407 is a prime.

It is a super-2 number, since 2×99179479² = 19673138109422882, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99179429) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 425547 + ... + 425779.

It is an arithmetic number, because the mean of its divisors is an integer number (3896100).

Almost surely, 2^99179479 is an apocalyptic number.

99179479 is a deficient number, since it is larger than the sum of its proper divisors (25495721).

99179479 is a wasteful number, since it uses less digits than its factorization.

99179479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 344 (or 330 counting only the distinct ones).

The product of its digits is 1285956, while the sum is 55.

The square root of 99179479 is about 9958.8894461180. The cubic root of 99179479 is about 462.8858882186.

The spelling of 99179479 in words is "ninety-nine million, one hundred seventy-nine thousand, four hundred seventy-nine".