79929670 has 16 divisors (see below), whose sum is σ = 145901088. Its totient is φ = 31521280.

The previous prime is 79929659. The next prime is 79929679. The reversal of 79929670 is 7692997.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79929679) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55579 + ... + 56998.

It is an arithmetic number, because the mean of its divisors is an integer number (9118818).

Almost surely, 2^79929670 is an apocalyptic number.

79929670 is a deficient number, since it is larger than the sum of its proper divisors (65971418).

79929670 is a wasteful number, since it uses less digits than its factorization.

79929670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112655.

The product of its (nonzero) digits is 428652, while the sum is 49.

The square root of 79929670 is about 8940.3394790131. The cubic root of 79929670 is about 430.7606331601.

The spelling of 79929670 in words is "seventy-nine million, nine hundred twenty-nine thousand, six hundred seventy".