78956379 has 12 divisors (see below), whose sum is σ = 116200656. Its totient is φ = 51644112.

The previous prime is 78956359. The next prime is 78956393. The reversal of 78956379 is 97365987.

78956379 is a `hidden beast` number, since 7 + 8 + 9 + 563 + 79 = 666.

It is not a de Polignac number, because 78956379 - 2⁸ = 78956123 is a prime.

It is not an unprimeable number, because it can be changed into a prime (78956329) 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, 82287 + ... + 83240.

It is an arithmetic number, because the mean of its divisors is an integer number (9683388).

Almost surely, 2^78956379 is an apocalyptic number.

78956379 is a deficient number, since it is larger than the sum of its proper divisors (37244277).

78956379 is a wasteful number, since it uses less digits than its factorization.

78956379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165586 (or 165583 counting only the distinct ones).

The product of its digits is 2857680, while the sum is 54.

The square root of 78956379 is about 8885.7402055203. The cubic root of 78956379 is about 429.0050531623.

The spelling of 78956379 in words is "seventy-eight million, nine hundred fifty-six thousand, three hundred seventy-nine".