6430864 has 40 divisors (see below), whose sum is σ = 13838400. Its totient is φ = 2870400.

The previous prime is 6430849. The next prime is 6430883. The reversal of 6430864 is 4680346.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10437 + ... + 11035.

It is an arithmetic number, because the mean of its divisors is an integer number (345960).

Almost surely, 2^6430864 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 6430864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6919200).

6430864 is an abundant number, since it is smaller than the sum of its proper divisors (7407536).

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

6430864 is a wasteful number, since it uses less digits than its factorization.

6430864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 679 (or 673 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 31.

The square root of 6430864 is about 2535.9148250681. The cubic root of 6430864 is about 185.9615290227.

The spelling of 6430864 in words is "six million, four hundred thirty thousand, eight hundred sixty-four".