6398632 has 16 divisors (see below), whose sum is σ = 12322260. Its totient is φ = 3112704.

The previous prime is 6398629. The next prime is 6398633. The reversal of 6398632 is 2368936.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 6380676 + 17956 = 2526^2 + 134^2 .

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a junction number, because it is equal to n+sod(n) for n = 6398591 and 6398600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6398633) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10513 + ... + 11104.

Almost surely, 2^6398632 is an apocalyptic number.

It is an amenable number.

6398632 is a deficient number, since it is larger than the sum of its proper divisors (5923628).

6398632 is a wasteful number, since it uses less digits than its factorization.

6398632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21660 (or 21656 counting only the distinct ones).

The product of its digits is 46656, while the sum is 37.

The square root of 6398632 is about 2529.5517389451. The cubic root of 6398632 is about 185.6503238737.

The spelling of 6398632 in words is "six million, three hundred ninety-eight thousand, six hundred thirty-two".