79455799 has 2 divisors, whose sum is σ = 79455800. Its totient is φ = 79455798.

The previous prime is 79455793. The next prime is 79455811. The reversal of 79455799 is 99755497.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 79455799 - 2¹⁹ = 78931511 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (79455793) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39727899 + 39727900.

It is an arithmetic number, because the mean of its divisors is an integer number (39727900).

Almost surely, 2^79455799 is an apocalyptic number.

79455799 is a deficient number, since it is larger than the sum of its proper divisors (1).

79455799 is an equidigital number, since it uses as much as digits as its factorization.

79455799 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3572100, while the sum is 55.

The square root of 79455799 is about 8913.7982364422. The cubic root of 79455799 is about 429.9076762308.

The spelling of 79455799 in words is "seventy-nine million, four hundred fifty-five thousand, seven hundred ninety-nine".