79976340 has 72 divisors (see below), whose sum is σ = 243323808. Its totient is φ = 21263040.

The previous prime is 79976333. The next prime is 79976341. The reversal of 79976340 is 4367997.

79976340 is a `hidden beast` number, since 7 + 9 + 9 + 7 + 634 + 0 = 666.

79976340 is digitally balanced in base 9, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (45).

79976340 is strictly pandigital in base 9.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79976341) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 115395 + ... + 116085.

Almost surely, 2^79976340 is an apocalyptic number.

It is an amenable number.

79976340 is an abundant number, since it is smaller than the sum of its proper divisors (163347468).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

79976340 is a wasteful number, since it uses less digits than its factorization.

79976340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1349 (or 1344 counting only the distinct ones).

The product of its (nonzero) digits is 285768, while the sum is 45.

The square root of 79976340 is about 8942.9491779837. The cubic root of 79976340 is about 430.8444555474.

The spelling of 79976340 in words is "seventy-nine million, nine hundred seventy-six thousand, three hundred forty".