79995401 has 2 divisors, whose sum is σ = 79995402. Its totient is φ = 79995400.

The previous prime is 79995397. The next prime is 79995431. The reversal of 79995401 is 10459997.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 72267001 + 7728400 = 8501^2 + 2780^2 .

It is a cyclic number.

It is not a de Polignac number, because 79995401 - 2² = 79995397 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (79995431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39997700 + 39997701.

It is an arithmetic number, because the mean of its divisors is an integer number (39997701).

Almost surely, 2^79995401 is an apocalyptic number.

It is an amenable number.

79995401 is a deficient number, since it is larger than the sum of its proper divisors (1).

79995401 is an equidigital number, since it uses as much as digits as its factorization.

79995401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 102060, while the sum is 44.

The square root of 79995401 is about 8944.0148143884. The cubic root of 79995401 is about 430.8786809772.

The spelling of 79995401 in words is "seventy-nine million, nine hundred ninety-five thousand, four hundred one".