64718472 has 64 divisors (see below), whose sum is σ = 199140480. Its totient is φ = 17068032.

The previous prime is 64718471. The next prime is 64718509. The reversal of 64718472 is 27481746.

64718472 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 64718472.

It is not an unprimeable number, because it can be changed into a prime (64718471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12633 + ... + 17000.

It is an arithmetic number, because the mean of its divisors is an integer number (3111570).

Almost surely, 2^64718472 is an apocalyptic number.

It is an amenable number.

64718472 is an abundant number, since it is smaller than the sum of its proper divisors (134422008).

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

64718472 is a wasteful number, since it uses less digits than its factorization.

64718472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29662 (or 29658 counting only the distinct ones).

The product of its digits is 75264, while the sum is 39.

The square root of 64718472 is about 8044.7791765840. The cubic root of 64718472 is about 401.4912501899.

The spelling of 64718472 in words is "sixty-four million, seven hundred eighteen thousand, four hundred seventy-two".