78974406 has 32 divisors (see below), whose sum is σ = 200570880. Its totient is φ = 22564008.

The previous prime is 78974381. The next prime is 78974411. The reversal of 78974406 is 60447987.

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 15 ways as a sum of consecutive naturals, for example, 104086 + ... + 104841.

It is an arithmetic number, because the mean of its divisors is an integer number (6267840).

Almost surely, 2^78974406 is an apocalyptic number.

78974406 is an abundant number, since it is smaller than the sum of its proper divisors (121596474).

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

78974406 is a wasteful number, since it uses less digits than its factorization.

78974406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208945 (or 208939 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 45.

The square root of 78974406 is about 8886.7545256972. The cubic root of 78974406 is about 429.0377002420.

The spelling of 78974406 in words is "seventy-eight million, nine hundred seventy-four thousand, four hundred six".