79013729 has 2 divisors, whose sum is σ = 79013730. Its totient is φ = 79013728.

The previous prime is 79013713. The next prime is 79013743. The reversal of 79013729 is 92731097.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 41473600 + 37540129 = 6440^2 + 6127^2 .

It is a cyclic number.

It is not a de Polignac number, because 79013729 - 2⁴ = 79013713 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 79013692 and 79013701.

It is not a weakly prime, because it can be changed into another prime (79013029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39506864 + 39506865.

It is an arithmetic number, because the mean of its divisors is an integer number (39506865).

Almost surely, 2^79013729 is an apocalyptic number.

It is an amenable number.

79013729 is a deficient number, since it is larger than the sum of its proper divisors (1).

79013729 is an equidigital number, since it uses as much as digits as its factorization.

79013729 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23814, while the sum is 38.

The square root of 79013729 is about 8888.9667003539. The cubic root of 79013729 is about 429.1088973592.

The spelling of 79013729 in words is "seventy-nine million, thirteen thousand, seven hundred twenty-nine".