23908749 has 16 divisors (see below), whose sum is σ = 34262208. Its totient is φ = 14775552.

The previous prime is 23908739. The next prime is 23908751. The reversal of 23908749 is 94780932.

It is not a de Polignac number, because 23908749 - 2⁴ = 23908733 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23908749.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23908739) 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 15 ways as a sum of consecutive naturals, for example, 82 + ... + 6915.

It is an arithmetic number, because the mean of its divisors is an integer number (2141388).

Almost surely, 2^23908749 is an apocalyptic number.

It is an amenable number.

23908749 is a deficient number, since it is larger than the sum of its proper divisors (10353459).

23908749 is a wasteful number, since it uses less digits than its factorization.

23908749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7084.

The product of its (nonzero) digits is 108864, while the sum is 42.

The square root of 23908749 is about 4889.6573499582. The cubic root of 23908749 is about 288.0838755509.

The spelling of 23908749 in words is "twenty-three million, nine hundred eight thousand, seven hundred forty-nine".