64316944 has 10 divisors (see below), whose sum is σ = 124614110. Its totient is φ = 32158464.

The previous prime is 64316927. The next prime is 64316969. The reversal of 64316944 is 44961346.

It can be written as a sum of positive squares in only one way, i.e., 54582544 + 9734400 = 7388^2 + 3120^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2009889 + ... + 2009920.

It is an arithmetic number, because the mean of its divisors is an integer number (12461411).

Almost surely, 2^64316944 is an apocalyptic number.

It is an amenable number.

64316944 is a deficient number, since it is larger than the sum of its proper divisors (60297166).

64316944 is a wasteful number, since it uses less digits than its factorization.

64316944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4019817 (or 4019811 counting only the distinct ones).

The product of its digits is 62208, while the sum is 37.

The square root of 64316944 is about 8019.7845357590. The cubic root of 64316944 is about 400.6592129987.

The spelling of 64316944 in words is "sixty-four million, three hundred sixteen thousand, nine hundred forty-four".