64694814 has 16 divisors (see below), whose sum is σ = 135015552. Its totient is φ = 20627288.

The previous prime is 64694813. The next prime is 64694933. The reversal of 64694814 is 41849646.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64694813) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 234264 + ... + 234539.

It is an arithmetic number, because the mean of its divisors is an integer number (8438472).

Almost surely, 2^64694814 is an apocalyptic number.

64694814 is an abundant number, since it is smaller than the sum of its proper divisors (70320738).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64694814 is a wasteful number, since it uses less digits than its factorization.

64694814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 468831.

The product of its digits is 165888, while the sum is 42.

The square root of 64694814 is about 8043.3086475654. The cubic root of 64694814 is about 401.4423221825.

The spelling of 64694814 in words is "sixty-four million, six hundred ninety-four thousand, eight hundred fourteen".