64312328 has 16 divisors (see below), whose sum is σ = 121001580. Its totient is φ = 32045248.

The previous prime is 64312291. The next prime is 64312357. The reversal of 64312328 is 82321346.

It can be written as a sum of positive squares in 2 ways, for example, as 59013124 + 5299204 = 7682^2 + 2302^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 64312328.

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 3 ways as a sum of consecutive naturals, for example, 11375 + ... + 16062.

Almost surely, 2^64312328 is an apocalyptic number.

It is an amenable number.

64312328 is a deficient number, since it is larger than the sum of its proper divisors (56689252).

64312328 is a wasteful number, since it uses less digits than its factorization.

64312328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27736 (or 27732 counting only the distinct ones).

The product of its digits is 6912, while the sum is 29.

The square root of 64312328 is about 8019.4967423149. The cubic root of 64312328 is about 400.6496277217.

The spelling of 64312328 in words is "sixty-four million, three hundred twelve thousand, three hundred twenty-eight".