23985761 has 4 divisors (see below), whose sum is σ = 23999892. Its totient is φ = 23971632.

The previous prime is 23985751. The next prime is 23985763. The reversal of 23985761 is 16758932.

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 2825761 + 21160000 = 1681^2 + 4600^2 .

It is a cyclic number.

It is not a de Polignac number, because 23985761 - 2¹⁸ = 23723617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23985763) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4106 + ... + 8051.

It is an arithmetic number, because the mean of its divisors is an integer number (5999973).

Almost surely, 2^23985761 is an apocalyptic number.

It is an amenable number.

23985761 is a deficient number, since it is larger than the sum of its proper divisors (14131).

23985761 is a wasteful number, since it uses less digits than its factorization.

23985761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14130.

The product of its digits is 90720, while the sum is 41.

The square root of 23985761 is about 4897.5260080984. The cubic root of 23985761 is about 288.3928577996.

The spelling of 23985761 in words is "twenty-three million, nine hundred eighty-five thousand, seven hundred sixty-one".