79880499 has 20 divisors (see below), whose sum is σ = 119833560. Its totient is φ = 53028000.

The previous prime is 79880477. The next prime is 79880509. The reversal of 79880499 is 99408897.

79880499 is a `hidden beast` number, since 79 + 8 + 80 + 499 = 666.

It is not a de Polignac number, because 79880499 - 2⁷ = 79880371 is a prime.

It is not an unprimeable number, because it can be changed into a prime (79882499) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 18367 + ... + 22295.

It is an arithmetic number, because the mean of its divisors is an integer number (5991678).

Almost surely, 2^79880499 is an apocalyptic number.

79880499 is a deficient number, since it is larger than the sum of its proper divisors (39953061).

79880499 is a wasteful number, since it uses less digits than its factorization.

79880499 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4192 (or 4183 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 54.

The square root of 79880499 is about 8937.5891044509. The cubic root of 79880499 is about 430.6722835067.

The spelling of 79880499 in words is "seventy-nine million, eight hundred eighty thousand, four hundred ninety-nine".