23399953 has 2 divisors, whose sum is σ = 23399954. Its totient is φ = 23399952.

The previous prime is 23399921. The next prime is 23400023. The reversal of 23399953 is 35999332.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11785489 + 11614464 = 3433^2 + 3408^2 .

It is a cyclic number.

It is not a de Polignac number, because 23399953 - 2⁵ = 23399921 is a prime.

It is not a weakly prime, because it can be changed into another prime (23399903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11699976 + 11699977.

It is an arithmetic number, because the mean of its divisors is an integer number (11699977).

Almost surely, 2^23399953 is an apocalyptic number.

It is an amenable number.

23399953 is a deficient number, since it is larger than the sum of its proper divisors (1).

23399953 is an equidigital number, since it uses as much as digits as its factorization.

23399953 is an evil number, because the sum of its binary digits is even.

The product of its digits is 196830, while the sum is 43.

The square root of 23399953 is about 4837.3497909496. The cubic root of 23399953 is about 286.0256590994.

It can be divided in two parts, 23 and 399953, that multiplied together give a palindrome (9198919).

The spelling of 23399953 in words is "twenty-three million, three hundred ninety-nine thousand, nine hundred fifty-three".