64864695 has 16 divisors (see below), whose sum is σ = 118609920. Its totient is φ = 29652384.

The previous prime is 64864691. The next prime is 64864717. The reversal of 64864695 is 59646846.

It is a happy number.

It is not a de Polignac number, because 64864695 - 2² = 64864691 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64864691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 308775 + ... + 308984.

It is an arithmetic number, because the mean of its divisors is an integer number (7413120).

Almost surely, 2^64864695 is an apocalyptic number.

64864695 is a deficient number, since it is larger than the sum of its proper divisors (53745225).

64864695 is a wasteful number, since it uses less digits than its factorization.

64864695 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 617774.

The product of its digits is 1244160, while the sum is 48.

The square root of 64864695 is about 8053.8621170219. The cubic root of 64864695 is about 401.7933952338.

The spelling of 64864695 in words is "sixty-four million, eight hundred sixty-four thousand, six hundred ninety-five".