80664797 has 2 divisors, whose sum is σ = 80664798. Its totient is φ = 80664796.

The previous prime is 80664791. The next prime is 80664803. The reversal of 80664797 is 79746608.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (80664791) and next prime (80664803).

It can be written as a sum of positive squares in only one way, i.e., 46430596 + 34234201 = 6814^2 + 5851^2 .

It is a cyclic number.

It is not a de Polignac number, because 80664797 - 2¹⁸ = 80402653 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 (80664791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40332398 + 40332399.

It is an arithmetic number, because the mean of its divisors is an integer number (40332399).

Almost surely, 2^80664797 is an apocalyptic number.

It is an amenable number.

80664797 is a deficient number, since it is larger than the sum of its proper divisors (1).

80664797 is an equidigital number, since it uses as much as digits as its factorization.

80664797 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 508032, while the sum is 47.

The square root of 80664797 is about 8981.3583048445. The cubic root of 80664797 is about 432.0771984952.

The spelling of 80664797 in words is "eighty million, six hundred sixty-four thousand, seven hundred ninety-seven".