79684605 has 192 divisors, whose sum is σ = 194987520. Its totient is φ = 29030400.

The previous prime is 79684603. The next prime is 79684639. The reversal of 79684605 is 50648697.

It is not a de Polignac number, because 79684605 - 2¹ = 79684603 is a prime.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79684603) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 1306275 + ... + 1306335.

It is an arithmetic number, because the mean of its divisors is an integer number (1015560).

Almost surely, 2^79684605 is an apocalyptic number.

It is an amenable number.

79684605 is an abundant number, since it is smaller than the sum of its proper divisors (115302915).

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

79684605 is a wasteful number, since it uses less digits than its factorization.

79684605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132 (or 129 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The square root of 79684605 is about 8926.6233817721. The cubic root of 79684605 is about 430.3199439652.

The spelling of 79684605 in words is "seventy-nine million, six hundred eighty-four thousand, six hundred five".