79377401 has 2 divisors, whose sum is σ = 79377402. Its totient is φ = 79377400.

The previous prime is 79377367. The next prime is 79377433. The reversal of 79377401 is 10477397.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 67980025 + 11397376 = 8245^2 + 3376^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-79377401 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (79377451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39688700 + 39688701.

It is an arithmetic number, because the mean of its divisors is an integer number (39688701).

Almost surely, 2^79377401 is an apocalyptic number.

It is an amenable number.

79377401 is a deficient number, since it is larger than the sum of its proper divisors (1).

79377401 is an equidigital number, since it uses as much as digits as its factorization.

79377401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 37044, while the sum is 38.

The square root of 79377401 is about 8909.3995869531. The cubic root of 79377401 is about 429.7662349365.

The spelling of 79377401 in words is "seventy-nine million, three hundred seventy-seven thousand, four hundred one".