22623437 has 2 divisors, whose sum is σ = 22623438. Its totient is φ = 22623436.

The previous prime is 22623401. The next prime is 22623439. The reversal of 22623437 is 73432622.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14523721 + 8099716 = 3811^2 + 2846^2 .

It is a cyclic number.

It is not a de Polignac number, because 22623437 - 2¹⁸ = 22361293 is a prime.

Together with 22623439, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22623439) 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, 11311718 + 11311719.

It is an arithmetic number, because the mean of its divisors is an integer number (11311719).

Almost surely, 2^22623437 is an apocalyptic number.

It is an amenable number.

22623437 is a deficient number, since it is larger than the sum of its proper divisors (1).

22623437 is an equidigital number, since it uses as much as digits as its factorization.

22623437 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12096, while the sum is 29.

The square root of 22623437 is about 4756.4100958601. The cubic root of 22623437 is about 282.8261281774.

The spelling of 22623437 in words is "twenty-two million, six hundred twenty-three thousand, four hundred thirty-seven".