2206631 has 8 divisors (see below), whose sum is σ = 2580864. Its totient is φ = 1847160.

The previous prime is 2206627. The next prime is 2206649. The reversal of 2206631 is 1366022.

2206631 is digitally balanced in base 8, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 2206631 - 2² = 2206627 is a prime.

It is a super-2 number, since 2×2206631² = 9738440740322, which contains 22 as substring.

It is a Duffinian number.

2206631 is strictly pandigital in base 8.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2206601) 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, 3365 + ... + 3966.

It is an arithmetic number, because the mean of its divisors is an integer number (322608).

2^2206631 is an apocalyptic number.

2206631 is a deficient number, since it is larger than the sum of its proper divisors (374233).

2206631 is an equidigital number, since it uses as much as digits as its factorization.

2206631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7381.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 2206631 is about 1485.4733252401. The cubic root of 2206631 is about 130.1896836493.

The spelling of 2206631 in words is "two million, two hundred six thousand, six hundred thirty-one".