64814686 has 16 divisors (see below), whose sum is σ = 101288880. Its totient is φ = 31078720.

The previous prime is 64814677. The next prime is 64814699. The reversal of 64814686 is 68641846.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1861 + ... + 11536.

It is an arithmetic number, because the mean of its divisors is an integer number (6330555).

Almost surely, 2^64814686 is an apocalyptic number.

64814686 is a deficient number, since it is larger than the sum of its proper divisors (36474194).

64814686 is a wasteful number, since it uses less digits than its factorization.

64814686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13499.

The product of its digits is 221184, while the sum is 43.

The square root of 64814686 is about 8050.7568588301. The cubic root of 64814686 is about 401.6901112521.

The spelling of 64814686 in words is "sixty-four million, eight hundred fourteen thousand, six hundred eighty-six".