6413731 has 4 divisors (see below), whose sum is σ = 6419392. Its totient is φ = 6408072.

The previous prime is 6413699. The next prime is 6413741. The reversal of 6413731 is 1373146.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 6413731 - 2⁵ = 6413699 is a prime.

It is a super-2 number, since 2×6413731² = 82271890680722, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

6413731 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 6413696 and 6413705.

It is not an unprimeable number, because it can be changed into a prime (6413741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 480 + ... + 3613.

It is an arithmetic number, because the mean of its divisors is an integer number (1604848).

Almost surely, 2^6413731 is an apocalyptic number.

6413731 is a deficient number, since it is larger than the sum of its proper divisors (5661).

6413731 is a wasteful number, since it uses less digits than its factorization.

6413731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5660.

The product of its digits is 1512, while the sum is 25.

The square root of 6413731 is about 2532.5345012457. The cubic root of 6413731 is about 185.7962369508.

Adding to 6413731 its reverse (1373146), we get a palindrome (7786877).

The spelling of 6413731 in words is "six million, four hundred thirteen thousand, seven hundred thirty-one".