64576667 has 2 divisors, whose sum is σ = 64576668. Its totient is φ = 64576666.

The previous prime is 64576651. The next prime is 64576679. The reversal of 64576667 is 76667546.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 64576667 - 2⁴ = 64576651 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (64576697) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32288333 + 32288334.

It is an arithmetic number, because the mean of its divisors is an integer number (32288334).

Almost surely, 2^64576667 is an apocalyptic number.

64576667 is a deficient number, since it is larger than the sum of its proper divisors (1).

64576667 is an equidigital number, since it uses as much as digits as its factorization.

64576667 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1270080, while the sum is 47.

The square root of 64576667 is about 8035.9608635184. The cubic root of 64576667 is about 401.1977991958.

The spelling of 64576667 in words is "sixty-four million, five hundred seventy-six thousand, six hundred sixty-seven".