22760981 has 2 divisors, whose sum is σ = 22760982. Its totient is φ = 22760980.

The previous prime is 22760963. The next prime is 22760987. The reversal of 22760981 is 18906722.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22714756 + 46225 = 4766^2 + 215^2 .

It is a cyclic number.

It is not a de Polignac number, because 22760981 - 2¹⁴ = 22744597 is a prime.

It is a super-2 number, since 2×22760981² = 1036124512164722, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22760987) 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, 11380490 + 11380491.

It is an arithmetic number, because the mean of its divisors is an integer number (11380491).

Almost surely, 2^22760981 is an apocalyptic number.

It is an amenable number.

22760981 is a deficient number, since it is larger than the sum of its proper divisors (1).

22760981 is an equidigital number, since it uses as much as digits as its factorization.

22760981 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 22760981 is about 4770.8469897912. The cubic root of 22760981 is about 283.3981377334.

The spelling of 22760981 in words is "twenty-two million, seven hundred sixty thousand, nine hundred eighty-one".