79687476 has 144 divisors (see below), whose sum is σ = 236658240. Its totient is φ = 23224320.

The previous prime is 79687459. The next prime is 79687481. The reversal of 79687476 is 67478697.

79687476 is a `hidden beast` number, since 7 + 96 + 87 + 476 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 309940 + ... + 310196.

It is an arithmetic number, because the mean of its divisors is an integer number (1643460).

Almost surely, 2^79687476 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 79687476, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (118329120).

79687476 is an abundant number, since it is smaller than the sum of its proper divisors (156970764).

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

79687476 is a wasteful number, since it uses less digits than its factorization.

79687476 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316 (or 302 counting only the distinct ones).

The product of its digits is 3556224, while the sum is 54.

The square root of 79687476 is about 8926.7841914096. The cubic root of 79687476 is about 430.3251119803.

The spelling of 79687476 in words is "seventy-nine million, six hundred eighty-seven thousand, four hundred seventy-six".