80693797 has 2 divisors, whose sum is σ = 80693798. Its totient is φ = 80693796.

The previous prime is 80693731. The next prime is 80693803. The reversal of 80693797 is 79739608.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 70543201 + 10150596 = 8399^2 + 3186^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-80693797 is a prime.

It is a super-2 number, since 2×80693797² = 13022977748554418, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 80693797.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80693597) 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, 40346898 + 40346899.

It is an arithmetic number, because the mean of its divisors is an integer number (40346899).

Almost surely, 2^80693797 is an apocalyptic number.

It is an amenable number.

80693797 is a deficient number, since it is larger than the sum of its proper divisors (1).

80693797 is an equidigital number, since it uses as much as digits as its factorization.

80693797 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 571536, while the sum is 49.

The square root of 80693797 is about 8982.9726148976. The cubic root of 80693797 is about 432.1289713376.

The spelling of 80693797 in words is "eighty million, six hundred ninety-three thousand, seven hundred ninety-seven".