6726631 has 4 divisors (see below), whose sum is σ = 6740064. Its totient is φ = 6713200.

The previous prime is 6726623. The next prime is 6726647. The reversal of 6726631 is 1366276.

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 6726631 - 2³ = 6726623 is a prime.

It is a super-2 number, since 2×6726631² = 90495129220322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6726593 and 6726602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6726131) 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, 5935 + ... + 6976.

It is an arithmetic number, because the mean of its divisors is an integer number (1685016).

Almost surely, 2^6726631 is an apocalyptic number.

6726631 is a deficient number, since it is larger than the sum of its proper divisors (13433).

6726631 is a wasteful number, since it uses less digits than its factorization.

6726631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13432.

The product of its digits is 9072, while the sum is 31.

The square root of 6726631 is about 2593.5749459000. The cubic root of 6726631 is about 188.7698083096.

The spelling of 6726631 in words is "six million, seven hundred twenty-six thousand, six hundred thirty-one".