23765421 has 8 divisors (see below), whose sum is σ = 31712320. Its totient is φ = 15831072.

The previous prime is 23765419. The next prime is 23765431. The reversal of 23765421 is 12456732.

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

It is not a de Polignac number, because 23765421 - 2¹ = 23765419 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 (23765431) 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, 3000 + ... + 7518.

It is an arithmetic number, because the mean of its divisors is an integer number (3964040).

Almost surely, 2^23765421 is an apocalyptic number.

It is an amenable number.

23765421 is a deficient number, since it is larger than the sum of its proper divisors (7946899).

23765421 is a wasteful number, since it uses less digits than its factorization.

23765421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6275.

The product of its digits is 10080, while the sum is 30.

The square root of 23765421 is about 4874.9790768782. The cubic root of 23765421 is about 287.5070536392.

The spelling of 23765421 in words is "twenty-three million, seven hundred sixty-five thousand, four hundred twenty-one".