23220853 has 2 divisors, whose sum is σ = 23220854. Its totient is φ = 23220852.

The previous prime is 23220833. The next prime is 23220859. The reversal of 23220853 is 35802232.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22972849 + 248004 = 4793^2 + 498^2 .

It is a cyclic number.

It is not a de Polignac number, because 23220853 - 2²¹ = 21123701 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23220859) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11610426 + 11610427.

It is an arithmetic number, because the mean of its divisors is an integer number (11610427).

Almost surely, 2^23220853 is an apocalyptic number.

It is an amenable number.

23220853 is a deficient number, since it is larger than the sum of its proper divisors (1).

23220853 is an equidigital number, since it uses as much as digits as its factorization.

23220853 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 23220853 is about 4818.8020295505. The cubic root of 23220853 is about 285.2940557864.

The spelling of 23220853 in words is "twenty-three million, two hundred twenty thousand, eight hundred fifty-three".