64316672 has 72 divisors (see below), whose sum is σ = 154526400. Its totient is φ = 26099712.

The previous prime is 64316663. The next prime is 64316683. The reversal of 64316672 is 27661346.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33104 + ... + 34992.

It is an arithmetic number, because the mean of its divisors is an integer number (2146200).

Almost surely, 2^64316672 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64316672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77263200).

64316672 is an abundant number, since it is smaller than the sum of its proper divisors (90209728).

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

64316672 is a wasteful number, since it uses less digits than its factorization.

64316672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1931 (or 1917 counting only the distinct ones).

The product of its digits is 36288, while the sum is 35.

The square root of 64316672 is about 8019.7675776795. The cubic root of 64316672 is about 400.6586481944.

The spelling of 64316672 in words is "sixty-four million, three hundred sixteen thousand, six hundred seventy-two".