70928979 has 16 divisors (see below), whose sum is σ = 103420800. Its totient is φ = 42882560.

The previous prime is 70928939. The next prime is 70929007. The reversal of 70928979 is 97982907.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 70928979 - 2⁸ = 70928723 is a prime.

It is not an unprimeable number, because it can be changed into a prime (70928939) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12424 + ... + 17210.

It is an arithmetic number, because the mean of its divisors is an integer number (6463800).

Almost surely, 2^70928979 is an apocalyptic number.

70928979 is a deficient number, since it is larger than the sum of its proper divisors (32491821).

70928979 is a wasteful number, since it uses less digits than its factorization.

70928979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5250.

The product of its (nonzero) digits is 571536, while the sum is 51.

The square root of 70928979 is about 8421.9343977497. The cubic root of 70928979 is about 413.9436607971.

The spelling of 70928979 in words is "seventy million, nine hundred twenty-eight thousand, nine hundred seventy-nine".