78974007 has 16 divisors (see below), whose sum is σ = 120794112. Its totient is φ = 44958240.

The previous prime is 78974003. The next prime is 78974033. The reversal of 78974007 is 70047987.

It is not a de Polignac number, because 78974007 - 2² = 78974003 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 78974007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78974003) by changing a digit.

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, 1248 + ... + 12629.

It is an arithmetic number, because the mean of its divisors is an integer number (7549632).

Almost surely, 2^78974007 is an apocalyptic number.

78974007 is a deficient number, since it is larger than the sum of its proper divisors (41820105).

78974007 is a wasteful number, since it uses less digits than its factorization.

78974007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14158.

The product of its (nonzero) digits is 98784, while the sum is 42.

The square root of 78974007 is about 8886.7320765285. The cubic root of 78974007 is about 429.0369777027.

The spelling of 78974007 in words is "seventy-eight million, nine hundred seventy-four thousand, seven".