6348631 has 4 divisors (see below), whose sum is σ = 6408072. Its totient is φ = 6289192.

The previous prime is 6348623. The next prime is 6348647. The reversal of 6348631 is 1368436.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6348631 - 2³ = 6348623 is a prime.

It is a super-2 number, since 2×6348631² = 80610231148322, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6348593 and 6348602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6348691) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29560 + ... + 29773.

It is an arithmetic number, because the mean of its divisors is an integer number (1602018).

Almost surely, 2^6348631 is an apocalyptic number.

6348631 is a deficient number, since it is larger than the sum of its proper divisors (59441).

6348631 is a wasteful number, since it uses less digits than its factorization.

6348631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59440.

The product of its digits is 10368, while the sum is 31.

The square root of 6348631 is about 2519.6489834896. The cubic root of 6348631 is about 185.1654813470.

The spelling of 6348631 in words is "six million, three hundred forty-eight thousand, six hundred thirty-one".