64613716 has 12 divisors (see below), whose sum is σ = 117990432. Its totient is φ = 30902168.

The previous prime is 64613713. The next prime is 64613723. The reversal of 64613716 is 61731646.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64613713) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 351070 + ... + 351253.

It is an arithmetic number, because the mean of its divisors is an integer number (9832536).

Almost surely, 2^64613716 is an apocalyptic number.

It is an amenable number.

64613716 is a deficient number, since it is larger than the sum of its proper divisors (53376716).

64613716 is a wasteful number, since it uses less digits than its factorization.

64613716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 702350 (or 702348 counting only the distinct ones).

The product of its digits is 18144, while the sum is 34.

The square root of 64613716 is about 8038.2657333532. The cubic root of 64613716 is about 401.2745097492.

The spelling of 64613716 in words is "sixty-four million, six hundred thirteen thousand, seven hundred sixteen".