78874874 has 16 divisors (see below), whose sum is σ = 128421888. Its totient is φ = 36115632.

The previous prime is 78874853. The next prime is 78874897. The reversal of 78874874 is 47847887.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8642 + ... + 15245.

It is an arithmetic number, because the mean of its divisors is an integer number (8026368).

Almost surely, 2^78874874 is an apocalyptic number.

78874874 is a deficient number, since it is larger than the sum of its proper divisors (49547014).

78874874 is a wasteful number, since it uses less digits than its factorization.

78874874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24029.

The product of its digits is 2809856, while the sum is 53.

The square root of 78874874 is about 8881.1527404949. The cubic root of 78874874 is about 428.8573847249.

The spelling of 78874874 in words is "seventy-eight million, eight hundred seventy-four thousand, eight hundred seventy-four".