6431916 has 48 divisors (see below), whose sum is σ = 16299360. Its totient is φ = 1966080.

The previous prime is 6431891. The next prime is 6431951. The reversal of 6431916 is 6191346.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7980 + ... + 8748.

It is an arithmetic number, because the mean of its divisors is an integer number (339570).

Almost surely, 2^6431916 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 6431916, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8149680).

6431916 is an abundant number, since it is smaller than the sum of its proper divisors (9867444).

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

6431916 is a wasteful number, since it uses less digits than its factorization.

6431916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 834 (or 832 counting only the distinct ones).

The product of its digits is 3888, while the sum is 30.

The square root of 6431916 is about 2536.1222368017. The cubic root of 6431916 is about 185.9716687106.

The spelling of 6431916 in words is "six million, four hundred thirty-one thousand, nine hundred sixteen".