79998701 has 2 divisors, whose sum is σ = 79998702. Its totient is φ = 79998700.

The previous prime is 79998691. The next prime is 79998757. The reversal of 79998701 is 10789997.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 46936201 + 33062500 = 6851^2 + 5750^2 .

It is a cyclic number.

It is not a de Polignac number, because 79998701 - 2¹⁰ = 79997677 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 79998701.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (79998781) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39999350 + 39999351.

It is an arithmetic number, because the mean of its divisors is an integer number (39999351).

Almost surely, 2^79998701 is an apocalyptic number.

It is an amenable number.

79998701 is a deficient number, since it is larger than the sum of its proper divisors (1).

79998701 is an equidigital number, since it uses as much as digits as its factorization.

79998701 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 285768, while the sum is 50.

The square root of 79998701 is about 8944.1992933968. The cubic root of 79998701 is about 430.8846058182.

The spelling of 79998701 in words is "seventy-nine million, nine hundred ninety-eight thousand, seven hundred one".