80664007 has 2 divisors, whose sum is σ = 80664008. Its totient is φ = 80664006.

The previous prime is 80663971. The next prime is 80664037. The reversal of 80664007 is 70046608.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-80664007 is a prime.

It is a super-3 number, since 3×80664007³ (a number of 25 digits) contains 333 as substring.

It is equal to p_4705870 and since 80664007 and 4705870 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 80664007.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80664037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40332003 + 40332004.

It is an arithmetic number, because the mean of its divisors is an integer number (40332004).

Almost surely, 2^80664007 is an apocalyptic number.

80664007 is a deficient number, since it is larger than the sum of its proper divisors (1).

80664007 is an equidigital number, since it uses as much as digits as its factorization.

80664007 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 80664007 is about 8981.3143247523. The cubic root of 80664007 is about 432.0757879579.

The spelling of 80664007 in words is "eighty million, six hundred sixty-four thousand, seven".