64312326 has 96 divisors (see below), whose sum is σ = 164011680. Its totient is φ = 18565632.

The previous prime is 64312291. The next prime is 64312357. The reversal of 64312326 is 62321346.

64312326 is a `hidden beast` number, since 643 + 12 + 3 + 2 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 64312326.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 202720 + ... + 203036.

It is an arithmetic number, because the mean of its divisors is an integer number (1708455).

Almost surely, 2^64312326 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64312326, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82005840).

64312326 is an abundant number, since it is smaller than the sum of its proper divisors (99699354).

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

64312326 is a wasteful number, since it uses less digits than its factorization.

64312326 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 375 (or 352 counting only the distinct ones).

The product of its digits is 5184, while the sum is 27.

The square root of 64312326 is about 8019.4966176188. The cubic root of 64312326 is about 400.6496235686.

The spelling of 64312326 in words is "sixty-four million, three hundred twelve thousand, three hundred twenty-six".