64716746 has 16 divisors (see below), whose sum is σ = 99010080. Its totient is φ = 31716720.

The previous prime is 64716709. The next prime is 64716749. The reversal of 64716746 is 64761746.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (64716749) by changing a digit.

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, 57380 + ... + 58496.

It is an arithmetic number, because the mean of its divisors is an integer number (6188130).

Almost surely, 2^64716746 is an apocalyptic number.

64716746 is a deficient number, since it is larger than the sum of its proper divisors (34293334).

64716746 is a wasteful number, since it uses less digits than its factorization.

64716746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1669.

The product of its digits is 169344, while the sum is 41.

The square root of 64716746 is about 8044.6719013270. The cubic root of 64716746 is about 401.4876809871.

The spelling of 64716746 in words is "sixty-four million, seven hundred sixteen thousand, seven hundred forty-six".