79307973 has 6 divisors (see below), whose sum is σ = 114555974. Its totient is φ = 52871976.

The previous prime is 79307959. The next prime is 79307993. The reversal of 79307973 is 37970397.

It can be written as a sum of positive squares in only one way, i.e., 45400644 + 33907329 = 6738^2 + 5823^2 .

It is not a de Polignac number, because 79307973 - 2⁹ = 79307461 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79307993) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4405990 + ... + 4406007.

Almost surely, 2^79307973 is an apocalyptic number.

It is an amenable number.

79307973 is a deficient number, since it is larger than the sum of its proper divisors (35248001).

79307973 is a wasteful number, since it uses less digits than its factorization.

79307973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8812003 (or 8812000 counting only the distinct ones).

The product of its (nonzero) digits is 250047, while the sum is 45.

The square root of 79307973 is about 8905.5024002018. The cubic root of 79307973 is about 429.6408990378.

The spelling of 79307973 in words is "seventy-nine million, three hundred seven thousand, nine hundred seventy-three".