2722831 has 2 divisors, whose sum is σ = 2722832. Its totient is φ = 2722830.

The previous prime is 2722801. The next prime is 2722843. The reversal of 2722831 is 1382272.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2722831 - 2⁵ = 2722799 is a prime.

It is a super-2 number, since 2×2722831² = 14827617309122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2722796 and 2722805.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2722801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1361415 + 1361416.

It is an arithmetic number, because the mean of its divisors is an integer number (1361416).

2^2722831 is an apocalyptic number.

2722831 is a deficient number, since it is larger than the sum of its proper divisors (1).

2722831 is an equidigital number, since it uses as much as digits as its factorization.

2722831 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1344, while the sum is 25.

The square root of 2722831 is about 1650.1002999818. The cubic root of 2722831 is about 139.6390532030.

It can be divided in two parts, 2722 and 831, that added together give a palindrome (3553).

The spelling of 2722831 in words is "two million, seven hundred twenty-two thousand, eight hundred thirty-one".