6404700 has 72 divisors (see below), whose sum is σ = 19064752. Its totient is φ = 1658880.

The previous prime is 6404689. The next prime is 6404701. The reversal of 6404700 is 74046.

6404700 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6404701) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10812 + ... + 11388.

Almost surely, 2^6404700 is an apocalyptic number.

6404700 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6404700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9532376).

6404700 is an abundant number, since it is smaller than the sum of its proper divisors (12660052).

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

6404700 is a wasteful number, since it uses less digits than its factorization.

6404700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 631 (or 624 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 21.

The square root of 6404700 is about 2530.7508767162. The cubic root of 6404700 is about 185.7089911142.

Adding to 6404700 its reverse (74046), we get a palindrome (6478746).

The spelling of 6404700 in words is "six million, four hundred four thousand, seven hundred".