79316644 has 12 divisors (see below), whose sum is σ = 151422768. Its totient is φ = 36053000.

The previous prime is 79316623. The next prime is 79316647. The reversal of 79316644 is 44661397.

It is a super-2 number, since 2×79316644² = 12582260030845472, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 79316597 and 79316606.

It is not an unprimeable number, because it can be changed into a prime (79316647) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 901282 + ... + 901369.

It is an arithmetic number, because the mean of its divisors is an integer number (12618564).

Almost surely, 2^79316644 is an apocalyptic number.

It is an amenable number.

79316644 is a deficient number, since it is larger than the sum of its proper divisors (72106124).

79316644 is a wasteful number, since it uses less digits than its factorization.

79316644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1802666 (or 1802664 counting only the distinct ones).

The product of its digits is 108864, while the sum is 40.

The square root of 79316644 is about 8905.9892207435. The cubic root of 79316644 is about 429.6565564820.

The spelling of 79316644 in words is "seventy-nine million, three hundred sixteen thousand, six hundred forty-four".