23249329 has 4 divisors (see below), whose sum is σ = 24051060. Its totient is φ = 22447600.

The previous prime is 23249323. The next prime is 23249371. The reversal of 23249329 is 92394232.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 19562929 + 3686400 = 4423^2 + 1920^2 .

It is a cyclic number.

It is not a de Polignac number, because 23249329 - 2⁹ = 23248817 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23249294 and 23249303.

It is not an unprimeable number, because it can be changed into a prime (23249323) 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, 400822 + ... + 400879.

It is an arithmetic number, because the mean of its divisors is an integer number (6012765).

Almost surely, 2^23249329 is an apocalyptic number.

23249329 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

23249329 is a deficient number, since it is larger than the sum of its proper divisors (801731).

23249329 is an equidigital number, since it uses as much as digits as its factorization.

23249329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 801730.

The product of its digits is 23328, while the sum is 34.

The square root of 23249329 is about 4821.7558005357. The cubic root of 23249329 is about 285.4106279457.

The spelling of 23249329 in words is "twenty-three million, two hundred forty-nine thousand, three hundred twenty-nine".