79378880 has 56 divisors (see below), whose sum is σ = 216030048. Its totient is φ = 27214848.

The previous prime is 79378867. The next prime is 79378891. The reversal of 79378880 is 8887397.

It is a tau number, because it is divible by the number of its divisors (56).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15479 + ... + 19958.

Almost surely, 2^79378880 is an apocalyptic number.

79378880 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

79378880 is an abundant number, since it is smaller than the sum of its proper divisors (136651168).

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

79378880 is a wasteful number, since it uses less digits than its factorization.

79378880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35461 (or 35451 counting only the distinct ones).

The product of its (nonzero) digits is 677376, while the sum is 50.

The square root of 79378880 is about 8909.4825887927. The cubic root of 79378880 is about 429.7689041275.

The spelling of 79378880 in words is "seventy-nine million, three hundred seventy-eight thousand, eight hundred eighty".