79819670 has 16 divisors (see below), whose sum is σ = 164200608. Its totient is φ = 27366720.

The previous prime is 79819669. The next prime is 79819679. The reversal of 79819670 is 7691897.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79819679) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 570071 + ... + 570210.

It is an arithmetic number, because the mean of its divisors is an integer number (10262538).

Almost surely, 2^79819670 is an apocalyptic number.

79819670 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

79819670 is an abundant number, since it is smaller than the sum of its proper divisors (84380938).

79819670 is a wasteful number, since it uses less digits than its factorization.

79819670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1140295.

The product of its (nonzero) digits is 190512, while the sum is 47.

The square root of 79819670 is about 8934.1854693083. The cubic root of 79819670 is about 430.5629367648.

The spelling of 79819670 in words is "seventy-nine million, eight hundred nineteen thousand, six hundred seventy".