6423631 has 8 divisors (see below), whose sum is σ = 6632640. Its totient is φ = 6217728.

The previous prime is 6423629. The next prime is 6423643. The reversal of 6423631 is 1363246.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6423631 - 2¹ = 6423629 is a prime.

It is a super-2 number, since 2×6423631² = 82526070448322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 6423596 and 6423605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6423611) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3855 + ... + 5263.

It is an arithmetic number, because the mean of its divisors is an integer number (829080).

Almost surely, 2^6423631 is an apocalyptic number.

6423631 is a deficient number, since it is larger than the sum of its proper divisors (209009).

6423631 is a wasteful number, since it uses less digits than its factorization.

6423631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1553.

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

The square root of 6423631 is about 2534.4883112771. The cubic root of 6423631 is about 185.8917838930.

Adding to 6423631 its reverse (1363246), we get a palindrome (7786877).

The spelling of 6423631 in words is "six million, four hundred twenty-three thousand, six hundred thirty-one".