80973799 has 2 divisors, whose sum is σ = 80973800. Its totient is φ = 80973798.

The previous prime is 80973793. The next prime is 80973817. The reversal of 80973799 is 99737908.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 80973799 - 2⁷ = 80973671 is a prime.

It is a super-2 number, since 2×80973799² = 13113512248984802, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80973793) 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, 40486899 + 40486900.

It is an arithmetic number, because the mean of its divisors is an integer number (40486900).

Almost surely, 2^80973799 is an apocalyptic number.

80973799 is a deficient number, since it is larger than the sum of its proper divisors (1).

80973799 is an equidigital number, since it uses as much as digits as its factorization.

80973799 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 857304, while the sum is 52.

The square root of 80973799 is about 8998.5442711585. The cubic root of 80973799 is about 432.6282137389.

The spelling of 80973799 in words is "eighty million, nine hundred seventy-three thousand, seven hundred ninety-nine".