6464970 has 48 divisors (see below), whose sum is σ = 17395560. Its totient is φ = 1663872.

The previous prime is 6464951. The next prime is 6464971. The reversal of 6464970 is 794646.

6464970 is a `hidden beast` number, since 6 + 4 + 649 + 7 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 5239521 + 1225449 = 2289^2 + 1107^2 .

It is an Ulam number.

It is a d-powerful number, because it can be written as 6⁴ + 4² + 6⁸ + 4⁵ + 9⁷ + 7² + 0 .

It is a Curzon number.

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 pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1372 + ... + 3848.

Almost surely, 2^6464970 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6464970, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8697780).

6464970 is an abundant number, since it is smaller than the sum of its proper divisors (10930590).

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

6464970 is a wasteful number, since it uses less digits than its factorization.

6464970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2519 (or 2516 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 6464970 is about 2542.6305276229. The cubic root of 6464970 is about 186.2896977075.

The spelling of 6464970 in words is "six million, four hundred sixty-four thousand, nine hundred seventy".