6264864 has 60 divisors (see below), whose sum is σ = 18432414. Its totient is φ = 2087424.

The previous prime is 6264859. The next prime is 6264887. The reversal of 6264864 is 4684626.

It is a happy number.

6264864 is a `hidden beast` number, since 6 + 2 + 648 + 6 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 3640464 + 2624400 = 1908^2 + 1620^2 .

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1384 + ... + 3800.

Almost surely, 2^6264864 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 6264864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9216207).

6264864 is an abundant number, since it is smaller than the sum of its proper divisors (12167550).

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

6264864 is a wasteful number, since it uses less digits than its factorization.

6264864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2439 (or 2422 counting only the distinct ones).

The product of its digits is 55296, while the sum is 36.

The square root of 6264864 is about 2502.9710345907. The cubic root of 6264864 is about 184.3474845083.

The spelling of 6264864 in words is "six million, two hundred sixty-four thousand, eight hundred sixty-four".