22026761 has 2 divisors, whose sum is σ = 22026762. Its totient is φ = 22026760.

The previous prime is 22026743. The next prime is 22026779. The reversal of 22026761 is 16762022.

It is a balanced prime because it is at equal distance from previous prime (22026743) and next prime (22026779).

It can be written as a sum of positive squares in only one way, i.e., 21160000 + 866761 = 4600^2 + 931^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22026761 is a prime.

It is a super-2 number, since 2×22026761² = 970356400302242, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 22026761.

It is not a weakly prime, because it can be changed into another prime (22026791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11013380 + 11013381.

It is an arithmetic number, because the mean of its divisors is an integer number (11013381).

Almost surely, 2^22026761 is an apocalyptic number.

It is an amenable number.

22026761 is a deficient number, since it is larger than the sum of its proper divisors (1).

22026761 is an equidigital number, since it uses as much as digits as its factorization.

22026761 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 22026761 is about 4693.2676250135. The cubic root of 22026761 is about 280.3175012334.

Adding to 22026761 its reverse (16762022), we get a palindrome (38788783).

The spelling of 22026761 in words is "twenty-two million, twenty-six thousand, seven hundred sixty-one".