22664273 has 2 divisors, whose sum is σ = 22664274. Its totient is φ = 22664272.

The previous prime is 22664249. The next prime is 22664287. The reversal of 22664273 is 37246622.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13712209 + 8952064 = 3703^2 + 2992^2 .

It is a cyclic number.

It is not a de Polignac number, because 22664273 - 2¹² = 22660177 is a prime.

It is not a weakly prime, because it can be changed into another prime (22664203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11332136 + 11332137.

It is an arithmetic number, because the mean of its divisors is an integer number (11332137).

Almost surely, 2^22664273 is an apocalyptic number.

It is an amenable number.

22664273 is a deficient number, since it is larger than the sum of its proper divisors (1).

22664273 is an equidigital number, since it uses as much as digits as its factorization.

22664273 is an evil number, because the sum of its binary digits is even.

The product of its digits is 24192, while the sum is 32.

The square root of 22664273 is about 4760.7008937760. The cubic root of 22664273 is about 282.9961958476.

The spelling of 22664273 in words is "twenty-two million, six hundred sixty-four thousand, two hundred seventy-three".