79455811 has 2 divisors, whose sum is σ = 79455812. Its totient is φ = 79455810.

The previous prime is 79455799. The next prime is 79455833. The reversal of 79455811 is 11855497.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-79455811 is a prime.

It is not a weakly prime, because it can be changed into another prime (79455011) 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, 39727905 + 39727906.

It is an arithmetic number, because the mean of its divisors is an integer number (39727906).

Almost surely, 2^79455811 is an apocalyptic number.

79455811 is a deficient number, since it is larger than the sum of its proper divisors (1).

79455811 is an equidigital number, since it uses as much as digits as its factorization.

79455811 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 50400, while the sum is 40.

The square root of 79455811 is about 8913.7989095559. The cubic root of 79455811 is about 429.9076978734.

The spelling of 79455811 in words is "seventy-nine million, four hundred fifty-five thousand, eight hundred eleven".