64326976 has 56 divisors (see below), whose sum is σ = 147076160. Its totient is φ = 27343872.

The previous prime is 64326971. The next prime is 64327007. The reversal of 64326976 is 67962346.

It is a tau number, because it is divible by the number of its divisors (56).

It is a plaindrome in base 11.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64326971) 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, 61756 + ... + 62788.

It is an arithmetic number, because the mean of its divisors is an integer number (2626360).

Almost surely, 2^64326976 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64326976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73538080).

64326976 is an abundant number, since it is smaller than the sum of its proper divisors (82749184).

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

64326976 is a wasteful number, since it uses less digits than its factorization.

64326976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1191 (or 1181 counting only the distinct ones).

The product of its digits is 326592, while the sum is 43.

The square root of 64326976 is about 8020.4099645841. The cubic root of 64326976 is about 400.6800431979.

The spelling of 64326976 in words is "sixty-four million, three hundred twenty-six thousand, nine hundred seventy-six".