23745709 has 8 divisors (see below), whose sum is σ = 25690112. Its totient is φ = 21818160.

The previous prime is 23745703. The next prime is 23745731. The reversal of 23745709 is 90754732.

23745709 is nontrivially palindromic in base 2.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 23745709 - 2⁷ = 23745581 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23745703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1197 + ... + 6994.

It is an arithmetic number, because the mean of its divisors is an integer number (3211264).

Almost surely, 2^23745709 is an apocalyptic number.

It is an amenable number.

23745709 is a deficient number, since it is larger than the sum of its proper divisors (1944403).

23745709 is a wasteful number, since it uses less digits than its factorization.

23745709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8427.

The product of its (nonzero) digits is 52920, while the sum is 37.

The square root of 23745709 is about 4872.9569052065. The cubic root of 23745709 is about 287.4275416643.

The spelling of 23745709 in words is "twenty-three million, seven hundred forty-five thousand, seven hundred nine".