79577923 has 2 divisors, whose sum is σ = 79577924. Its totient is φ = 79577922.

The previous prime is 79577891. The next prime is 79577929. The reversal of 79577923 is 32977597.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 79577923 - 2⁵ = 79577891 is a prime.

It is not a weakly prime, because it can be changed into another prime (79577929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39788961 + 39788962.

It is an arithmetic number, because the mean of its divisors is an integer number (39788962).

Almost surely, 2^79577923 is an apocalyptic number.

79577923 is a deficient number, since it is larger than the sum of its proper divisors (1).

79577923 is an equidigital number, since it uses as much as digits as its factorization.

79577923 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 833490, while the sum is 49.

The square root of 79577923 is about 8920.6458846879. The cubic root of 79577923 is about 430.1278203026.

The spelling of 79577923 in words is "seventy-nine million, five hundred seventy-seven thousand, nine hundred twenty-three".