64654634 has 16 divisors (see below), whose sum is σ = 105929856. Its totient is φ = 29352000.

The previous prime is 64654631. The next prime is 64654649. The reversal of 64654634 is 43645646.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (64654631) 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, 25199 + ... + 27645.

It is an arithmetic number, because the mean of its divisors is an integer number (6620616).

Almost surely, 2^64654634 is an apocalyptic number.

64654634 is a deficient number, since it is larger than the sum of its proper divisors (41275222).

64654634 is a wasteful number, since it uses less digits than its factorization.

64654634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3661.

The product of its digits is 207360, while the sum is 38.

The square root of 64654634 is about 8040.8105312835. The cubic root of 64654634 is about 401.3591970605.

The spelling of 64654634 in words is "sixty-four million, six hundred fifty-four thousand, six hundred thirty-four".