6431013 has 6 divisors (see below), whose sum is σ = 9289254. Its totient is φ = 4287336.

The previous prime is 6430997. The next prime is 6431017. The reversal of 6431013 is 3101346.

6431013 is a `hidden beast` number, since 643 + 10 + 13 = 666.

It can be written as a sum of positive squares in only one way, i.e., 3392964 + 3038049 = 1842^2 + 1743^2 .

It is not a de Polignac number, because 6431013 - 2⁴ = 6430997 is a prime.

6431013 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6431017) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 357270 + ... + 357287.

It is an arithmetic number, because the mean of its divisors is an integer number (1548209).

Almost surely, 2^6431013 is an apocalyptic number.

It is an amenable number.

6431013 is a deficient number, since it is larger than the sum of its proper divisors (2858241).

6431013 is a wasteful number, since it uses less digits than its factorization.

6431013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 714563 (or 714560 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 6431013 is about 2535.9442028562. The cubic root of 6431013 is about 185.9629652244.

Adding to 6431013 its reverse (3101346), we get a palindrome (9532359).

The spelling of 6431013 in words is "six million, four hundred thirty-one thousand, thirteen".