64308472 has 8 divisors (see below), whose sum is σ = 120578400. Its totient is φ = 32154232.

The previous prime is 64308403. The next prime is 64308473. The reversal of 64308472 is 27480346.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64308473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4019272 + ... + 4019287.

It is an arithmetic number, because the mean of its divisors is an integer number (15072300).

Almost surely, 2^64308472 is an apocalyptic number.

It is an amenable number.

64308472 is a deficient number, since it is larger than the sum of its proper divisors (56269928).

64308472 is a wasteful number, since it uses less digits than its factorization.

64308472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8038565 (or 8038561 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 34.

The square root of 64308472 is about 8019.2563246226. The cubic root of 64308472 is about 400.6416202583.

The spelling of 64308472 in words is "sixty-four million, three hundred eight thousand, four hundred seventy-two".