78970746 has 16 divisors (see below), whose sum is σ = 167232384. Its totient is φ = 24775104.

The previous prime is 78970721. The next prime is 78970751. The reversal of 78970746 is 64707987.

It is a junction number, because it is equal to n+sod(n) for n = 78970695 and 78970704.

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, 387010 + ... + 387213.

It is an arithmetic number, because the mean of its divisors is an integer number (10452024).

Almost surely, 2^78970746 is an apocalyptic number.

78970746 is an abundant number, since it is smaller than the sum of its proper divisors (88261638).

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

78970746 is a wasteful number, since it uses less digits than its factorization.

78970746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 774245.

The product of its (nonzero) digits is 592704, while the sum is 48.

The square root of 78970746 is about 8886.5485988656. The cubic root of 78970746 is about 429.0310723469.

The spelling of 78970746 in words is "seventy-eight million, nine hundred seventy thousand, seven hundred forty-six".