23839425 has 18 divisors (see below), whose sum is σ = 42699462. Its totient is φ = 12714240.

The previous prime is 23839411. The next prime is 23839429. The reversal of 23839425 is 52493832.

It can be written as a sum of positive squares in 3 ways, for example, as 103041 + 23736384 = 321^2 + 4872^2 .

It is not a de Polignac number, because 23839425 - 2¹⁰ = 23838401 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23839425.

It is not an unprimeable number, because it can be changed into a prime (23839429) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 52752 + ... + 53201.

Almost surely, 2^23839425 is an apocalyptic number.

23839425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

23839425 is a deficient number, since it is larger than the sum of its proper divisors (18860037).

23839425 is a wasteful number, since it uses less digits than its factorization.

23839425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105969 (or 105961 counting only the distinct ones).

The product of its digits is 51840, while the sum is 36.

The square root of 23839425 is about 4882.5633636441. The cubic root of 23839425 is about 287.8051706021.

The spelling of 23839425 in words is "twenty-three million, eight hundred thirty-nine thousand, four hundred twenty-five".