79973646 has 8 divisors (see below), whose sum is σ = 159947304. Its totient is φ = 26657880.

The previous prime is 79973609. The next prime is 79973653. The reversal of 79973646 is 64637997.

It is a sphenic number, since it is the product of 3 distinct primes.

79973646 is an admirable number.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 6664465 + ... + 6664476.

It is an arithmetic number, because the mean of its divisors is an integer number (19993413).

Almost surely, 2^79973646 is an apocalyptic number.

79973646 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

79973646 is a wasteful number, since it uses less digits than its factorization.

79973646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13328946.

The product of its digits is 1714608, while the sum is 51.

The square root of 79973646 is about 8942.7985552622. The cubic root of 79973646 is about 430.8396178333.

The spelling of 79973646 in words is "seventy-nine million, nine hundred seventy-three thousand, six hundred forty-six".