79401078 has 24 divisors (see below), whose sum is σ = 174395208. Its totient is φ = 26104032.

The previous prime is 79401071. The next prime is 79401121. The reversal of 79401078 is 87010497.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79401071) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28900 + ... + 31527.

It is an arithmetic number, because the mean of its divisors is an integer number (7266467).

Almost surely, 2^79401078 is an apocalyptic number.

79401078 is an abundant number, since it is smaller than the sum of its proper divisors (94994130).

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

79401078 is a wasteful number, since it uses less digits than its factorization.

79401078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60508 (or 60505 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 36.

The square root of 79401078 is about 8910.7282530666. The cubic root of 79401078 is about 429.8089614702.

The spelling of 79401078 in words is "seventy-nine million, four hundred one thousand, seventy-eight".