6431632 has 20 divisors (see below), whose sum is σ = 12864256. Its totient is φ = 3111840.

The previous prime is 6431597. The next prime is 6431641. The reversal of 6431632 is 2361346.

6431632 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 6431597 and 6431606.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5988 + ... + 6979.

Almost surely, 2^6431632 is an apocalyptic number.

6431632 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is an amenable number.

6431632 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

6431632 is a wasteful number, since it uses less digits than its factorization.

6431632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13006 (or 13000 counting only the distinct ones).

The product of its digits is 2592, while the sum is 25.

The square root of 6431632 is about 2536.0662451916. The cubic root of 6431632 is about 185.9689314894.

Adding to 6431632 its reverse (2361346), we get a palindrome (8792978).

The spelling of 6431632 in words is "six million, four hundred thirty-one thousand, six hundred thirty-two".