6464976 has 80 divisors (see below), whose sum is σ = 19427328. Its totient is φ = 1814400.

The previous prime is 6464971. The next prime is 6464977. The reversal of 6464976 is 6794646.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a d-powerful number, because it can be written as 6 + 4² + 6⁴ + 4⁵ + 9⁷ + 7² + 6⁸ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6464971) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23721 + ... + 23991.

Almost surely, 2^6464976 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 6464976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9713664).

6464976 is an abundant number, since it is smaller than the sum of its proper divisors (12962352).

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

6464976 is a wasteful number, since it uses less digits than its factorization.

6464976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 360 (or 354 counting only the distinct ones).

The product of its digits is 217728, while the sum is 42.

The square root of 6464976 is about 2542.6317075031. The cubic root of 6464976 is about 186.2897553380.

The spelling of 6464976 in words is "six million, four hundred sixty-four thousand, nine hundred seventy-six".