79680078 has 32 divisors (see below), whose sum is σ = 177359520. Its totient is φ = 26516160.

The previous prime is 79680061. The next prime is 79680101. The reversal of 79680078 is 87008697.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59658 + ... + 60978.

It is an arithmetic number, because the mean of its divisors is an integer number (5542485).

Almost surely, 2^79680078 is an apocalyptic number.

79680078 is an abundant number, since it is smaller than the sum of its proper divisors (97679442).

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

79680078 is a wasteful number, since it uses less digits than its factorization.

79680078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2449 (or 2443 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 45.

The square root of 79680078 is about 8926.3698108470. The cubic root of 79680078 is about 430.3117947739.

The spelling of 79680078 in words is "seventy-nine million, six hundred eighty thousand, seventy-eight".