22828231 has 2 divisors, whose sum is σ = 22828232. Its totient is φ = 22828230.

The previous prime is 22828219. The next prime is 22828241. The reversal of 22828231 is 13282822.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22828231 - 2¹¹ = 22826183 is a prime.

It is a super-2 number, since 2×22828231² = 1042256261178722, which contains 22 as substring.

It is equal to p_1438057 and since 22828231 and 1438057 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22828231.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22828241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11414115 + 11414116.

It is an arithmetic number, because the mean of its divisors is an integer number (11414116).

Almost surely, 2^22828231 is an apocalyptic number.

22828231 is a deficient number, since it is larger than the sum of its proper divisors (1).

22828231 is an equidigital number, since it uses as much as digits as its factorization.

22828231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3072, while the sum is 28.

The square root of 22828231 is about 4777.8898061801. The cubic root of 22828231 is about 283.6769743573.

The spelling of 22828231 in words is "twenty-two million, eight hundred twenty-eight thousand, two hundred thirty-one".