22209713 has 2 divisors, whose sum is σ = 22209714. Its totient is φ = 22209712.

The previous prime is 22209653. The next prime is 22209749. The reversal of 22209713 is 31790222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14876449 + 7333264 = 3857^2 + 2708^2 .

It is a cyclic number.

It is not a de Polignac number, because 22209713 - 2¹⁰ = 22208689 is a prime.

It is equal to p_1401578 and since 22209713 and 1401578 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (22209773) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11104856 + 11104857.

It is an arithmetic number, because the mean of its divisors is an integer number (11104857).

Almost surely, 2^22209713 is an apocalyptic number.

It is an amenable number.

22209713 is a deficient number, since it is larger than the sum of its proper divisors (1).

22209713 is an equidigital number, since it uses as much as digits as its factorization.

22209713 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 22209713 is about 4712.7182177593. The cubic root of 22209713 is about 281.0914584324.

Adding to 22209713 its reverse (31790222), we get a palindrome (53999935).

It can be divided in two parts, 22209 and 713, that added together give a palindrome (22922).

The spelling of 22209713 in words is "twenty-two million, two hundred nine thousand, seven hundred thirteen".