79974007 has 2 divisors, whose sum is σ = 79974008. Its totient is φ = 79974006.

The previous prime is 79973987. The next prime is 79974019. The reversal of 79974007 is 70047997.

It is a strong prime.

It is an emirp because it is prime and its reverse (70047997) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 79974007 - 2²³ = 71585399 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (79974077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39987003 + 39987004.

It is an arithmetic number, because the mean of its divisors is an integer number (39987004).

Almost surely, 2^79974007 is an apocalyptic number.

79974007 is a deficient number, since it is larger than the sum of its proper divisors (1).

79974007 is an equidigital number, since it uses as much as digits as its factorization.

79974007 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 111132, while the sum is 43.

The square root of 79974007 is about 8942.8187390777. The cubic root of 79974007 is about 430.8402661005.

The spelling of 79974007 in words is "seventy-nine million, nine hundred seventy-four thousand, seven".