23748561 has 12 divisors (see below), whose sum is σ = 35231092. Its totient is φ = 15404256.

The previous prime is 23748559. The next prime is 23748563. The reversal of 23748561 is 16584732.

23748561 is a `hidden beast` number, since 23 + 74 + 8 + 561 = 666.

It is an interprime number because it is at equal distance from previous prime (23748559) and next prime (23748563).

It can be written as a sum of positive squares in 2 ways, for example, as 14107536 + 9641025 = 3756^2 + 3105^2 .

It is not a de Polignac number, because 23748561 - 2¹ = 23748559 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 (23748563) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35326 + ... + 35991.

Almost surely, 2^23748561 is an apocalyptic number.

It is an amenable number.

23748561 is a deficient number, since it is larger than the sum of its proper divisors (11482531).

23748561 is a wasteful number, since it uses less digits than its factorization.

23748561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71360 (or 71357 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 23748561 is about 4873.2495318832. The cubic root of 23748561 is about 287.4390484525.

The spelling of 23748561 in words is "twenty-three million, seven hundred forty-eight thousand, five hundred sixty-one".