79920803 has 2 divisors, whose sum is σ = 79920804. Its totient is φ = 79920802.

The previous prime is 79920793. The next prime is 79920809. The reversal of 79920803 is 30802997.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 79920803 - 2⁴ = 79920787 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (79920809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39960401 + 39960402.

It is an arithmetic number, because the mean of its divisors is an integer number (39960402).

Almost surely, 2^79920803 is an apocalyptic number.

79920803 is a deficient number, since it is larger than the sum of its proper divisors (1).

79920803 is an equidigital number, since it uses as much as digits as its factorization.

79920803 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27216, while the sum is 38.

The square root of 79920803 is about 8939.8435668640. The cubic root of 79920803 is about 430.7447037571.

The spelling of 79920803 in words is "seventy-nine million, nine hundred twenty thousand, eight hundred three".