64312417 has 4 divisors (see below), whose sum is σ = 69259540. Its totient is φ = 59365296.

The previous prime is 64312357. The next prime is 64312421. The reversal of 64312417 is 71421346.

64312417 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 19368801 + 44943616 = 4401^2 + 6704^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64312417 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64312487) 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 3 ways as a sum of consecutive naturals, for example, 2473542 + ... + 2473567.

It is an arithmetic number, because the mean of its divisors is an integer number (17314885).

Almost surely, 2^64312417 is an apocalyptic number.

It is an amenable number.

64312417 is a deficient number, since it is larger than the sum of its proper divisors (4947123).

64312417 is a wasteful number, since it uses less digits than its factorization.

64312417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4947122.

The product of its digits is 4032, while the sum is 28.

The square root of 64312417 is about 8019.5022912897. The cubic root of 64312417 is about 400.6498125375.

It can be divided in two parts, 64 and 312417, that added together give a square (312481 = 559²).

The spelling of 64312417 in words is "sixty-four million, three hundred twelve thousand, four hundred seventeen".