22760921 has 2 divisors, whose sum is σ = 22760922. Its totient is φ = 22760920.

The previous prime is 22760893. The next prime is 22760929. The reversal of 22760921 is 12906722.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22705225 + 55696 = 4765^2 + 236^2 .

It is a cyclic number.

It is not a de Polignac number, because 22760921 - 2²² = 18566617 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (22760929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11380460 + 11380461.

It is an arithmetic number, because the mean of its divisors is an integer number (11380461).

Almost surely, 2^22760921 is an apocalyptic number.

It is an amenable number.

22760921 is a deficient number, since it is larger than the sum of its proper divisors (1).

22760921 is an equidigital number, since it uses as much as digits as its factorization.

22760921 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 22760921 is about 4770.8407015955. The cubic root of 22760921 is about 283.3978887122.

The spelling of 22760921 in words is "twenty-two million, seven hundred sixty thousand, nine hundred twenty-one".