79645927 has 2 divisors, whose sum is σ = 79645928. Its totient is φ = 79645926.

The previous prime is 79645879. The next prime is 79645949. The reversal of 79645927 is 72954697.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-79645927 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (79645427) 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, 39822963 + 39822964.

It is an arithmetic number, because the mean of its divisors is an integer number (39822964).

Almost surely, 2^79645927 is an apocalyptic number.

79645927 is a deficient number, since it is larger than the sum of its proper divisors (1).

79645927 is an equidigital number, since it uses as much as digits as its factorization.

79645927 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 952560, while the sum is 49.

The square root of 79645927 is about 8924.4566781401. The cubic root of 79645927 is about 430.2503085635.

The spelling of 79645927 in words is "seventy-nine million, six hundred forty-five thousand, nine hundred twenty-seven".