22276831 has 2 divisors, whose sum is σ = 22276832. Its totient is φ = 22276830.

The previous prime is 22276829. The next prime is 22276847. The reversal of 22276831 is 13867222.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22276831 - 2¹ = 22276829 is a prime.

It is a super-2 number, since 2×22276831² = 992514398805122, which contains 22 as substring.

Together with 22276829, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 22276793 and 22276802.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22276231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11138415 + 11138416.

It is an arithmetic number, because the mean of its divisors is an integer number (11138416).

Almost surely, 2^22276831 is an apocalyptic number.

22276831 is a deficient number, since it is larger than the sum of its proper divisors (1).

22276831 is an equidigital number, since it uses as much as digits as its factorization.

22276831 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8064, while the sum is 31.

The square root of 22276831 is about 4719.8337894464. The cubic root of 22276831 is about 281.3743275181.

The spelling of 22276831 in words is "twenty-two million, two hundred seventy-six thousand, eight hundred thirty-one".