79736401 has 2 divisors, whose sum is σ = 79736402. Its totient is φ = 79736400.

The previous prime is 79736353. The next prime is 79736417. The reversal of 79736401 is 10463797.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 70157376 + 9579025 = 8376^2 + 3095^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-79736401 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (79736441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39868200 + 39868201.

It is an arithmetic number, because the mean of its divisors is an integer number (39868201).

Almost surely, 2^79736401 is an apocalyptic number.

It is an amenable number.

79736401 is a deficient number, since it is larger than the sum of its proper divisors (1).

79736401 is an equidigital number, since it uses as much as digits as its factorization.

79736401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31752, while the sum is 37.

The square root of 79736401 is about 8929.5241194590. The cubic root of 79736401 is about 430.4131615707.

The spelling of 79736401 in words is "seventy-nine million, seven hundred thirty-six thousand, four hundred one".