64813326 has 16 divisors (see below), whose sum is σ = 129812304. Its totient is φ = 21573504.

The previous prime is 64813319. The next prime is 64813327. The reversal of 64813326 is 62331846.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64813327) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2971 + ... + 11766.

It is an arithmetic number, because the mean of its divisors is an integer number (8113269).

Almost surely, 2^64813326 is an apocalyptic number.

64813326 is an abundant number, since it is smaller than the sum of its proper divisors (64998978).

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

64813326 is a wasteful number, since it uses less digits than its factorization.

64813326 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15475.

The product of its digits is 20736, while the sum is 33.

The square root of 64813326 is about 8050.6723942786. The cubic root of 64813326 is about 401.6873016914.

The spelling of 64813326 in words is "sixty-four million, eight hundred thirteen thousand, three hundred twenty-six".