22613489 has 2 divisors, whose sum is σ = 22613490. Its totient is φ = 22613488.

The previous prime is 22613483. The next prime is 22613491. The reversal of 22613489 is 98431622.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17707264 + 4906225 = 4208^2 + 2215^2 .

It is a cyclic number.

It is not a de Polignac number, because 22613489 - 2¹² = 22609393 is a prime.

It is a super-2 number, since 2×22613489² = 1022739769506242, which contains 22 as substring.

Together with 22613491, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (22613483) 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, 11306744 + 11306745.

It is an arithmetic number, because the mean of its divisors is an integer number (11306745).

Almost surely, 2^22613489 is an apocalyptic number.

It is an amenable number.

22613489 is a deficient number, since it is larger than the sum of its proper divisors (1).

22613489 is an equidigital number, since it uses as much as digits as its factorization.

22613489 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20736, while the sum is 35.

The square root of 22613489 is about 4755.3642342096. The cubic root of 22613489 is about 282.7846672385.

The spelling of 22613489 in words is "twenty-two million, six hundred thirteen thousand, four hundred eighty-nine".