22865761 has 2 divisors, whose sum is σ = 22865762. Its totient is φ = 22865760.

The previous prime is 22865747. The next prime is 22865771. The reversal of 22865761 is 16756822.

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., 22467600 + 398161 = 4740^2 + 631^2 .

It is a cyclic number.

It is not a de Polignac number, because 22865761 - 2⁵ = 22865729 is a prime.

It is a super-2 number, since 2×22865761² = 1045686052218242, 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 22865761.

It is not a weakly prime, because it can be changed into another prime (22865701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11432880 + 11432881.

It is an arithmetic number, because the mean of its divisors is an integer number (11432881).

Almost surely, 2^22865761 is an apocalyptic number.

It is an amenable number.

22865761 is a deficient number, since it is larger than the sum of its proper divisors (1).

22865761 is an equidigital number, since it uses as much as digits as its factorization.

22865761 is an evil number, because the sum of its binary digits is even.

The product of its digits is 40320, while the sum is 37.

The square root of 22865761 is about 4781.8156593495. The cubic root of 22865761 is about 283.8323458340.

The spelling of 22865761 in words is "twenty-two million, eight hundred sixty-five thousand, seven hundred sixty-one".