23232749 has 4 divisors (see below), whose sum is σ = 23261280. Its totient is φ = 23204220.

The previous prime is 23232743. The next prime is 23232757. The reversal of 23232749 is 94723232.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 23232749 - 2⁸ = 23232493 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23232743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13007 + ... + 14684.

It is an arithmetic number, because the mean of its divisors is an integer number (5815320).

Almost surely, 2^23232749 is an apocalyptic number.

It is an amenable number.

23232749 is a deficient number, since it is larger than the sum of its proper divisors (28531).

23232749 is an equidigital number, since it uses as much as digits as its factorization.

23232749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28530.

The product of its digits is 18144, while the sum is 32.

The square root of 23232749 is about 4820.0362031835. The cubic root of 23232749 is about 285.3427660081.

The spelling of 23232749 in words is "twenty-three million, two hundred thirty-two thousand, seven hundred forty-nine".