23689453 has 2 divisors, whose sum is σ = 23689454. Its totient is φ = 23689452.

The previous prime is 23689427. The next prime is 23689469. The reversal of 23689453 is 35498632.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23687689 + 1764 = 4867^2 + 42^2 .

It is a cyclic number.

It is not a de Polignac number, because 23689453 - 2⁹ = 23688941 is a prime.

It is a super-2 number, since 2×23689453² = 1122380366878418, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23689423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11844726 + 11844727.

It is an arithmetic number, because the mean of its divisors is an integer number (11844727).

Almost surely, 2^23689453 is an apocalyptic number.

It is an amenable number.

23689453 is a deficient number, since it is larger than the sum of its proper divisors (1).

23689453 is an equidigital number, since it uses as much as digits as its factorization.

23689453 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 155520, while the sum is 40.

The square root of 23689453 is about 4867.1812170906. The cubic root of 23689453 is about 287.2003804861.

It can be divided in two parts, 23689 and 453, that added together give a palindrome (24142).

The spelling of 23689453 in words is "twenty-three million, six hundred eighty-nine thousand, four hundred fifty-three".