64953667 has 2 divisors, whose sum is σ = 64953668. Its totient is φ = 64953666.

The previous prime is 64953659. The next prime is 64953677. The reversal of 64953667 is 76635946.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 64953667 - 2³ = 64953659 is a prime.

It is not a weakly prime, because it can be changed into another prime (64953677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32476833 + 32476834.

It is an arithmetic number, because the mean of its divisors is an integer number (32476834).

Almost surely, 2^64953667 is an apocalyptic number.

64953667 is a deficient number, since it is larger than the sum of its proper divisors (1).

64953667 is an equidigital number, since it uses as much as digits as its factorization.

64953667 is an evil number, because the sum of its binary digits is even.

The product of its digits is 816480, while the sum is 46.

The square root of 64953667 is about 8059.3837853771. The cubic root of 64953667 is about 401.9770186445.

The spelling of 64953667 in words is "sixty-four million, nine hundred fifty-three thousand, six hundred sixty-seven".