80664907 has 2 divisors, whose sum is σ = 80664908. Its totient is φ = 80664906.

The previous prime is 80664901. The next prime is 80664911. The reversal of 80664907 is 70946608.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-80664907 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 80664907.

It is not a weakly prime, because it can be changed into another prime (80664901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40332453 + 40332454.

It is an arithmetic number, because the mean of its divisors is an integer number (40332454).

Almost surely, 2^80664907 is an apocalyptic number.

80664907 is a deficient number, since it is larger than the sum of its proper divisors (1).

80664907 is an equidigital number, since it uses as much as digits as its factorization.

80664907 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72576, while the sum is 40.

The square root of 80664907 is about 8981.3644286378. The cubic root of 80664907 is about 432.0773948984.

The spelling of 80664907 in words is "eighty million, six hundred sixty-four thousand, nine hundred seven".