23506685 has 4 divisors (see below), whose sum is σ = 28208028. Its totient is φ = 18805344.

The previous prime is 23506663. The next prime is 23506697. The reversal of 23506685 is 58660532.

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 6770404 + 16736281 = 2602^2 + 4091^2 .

It is a cyclic number.

It is not a de Polignac number, because 23506685 - 2¹⁰ = 23505661 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2350664 + ... + 2350673.

It is an arithmetic number, because the mean of its divisors is an integer number (7052007).

Almost surely, 2^23506685 is an apocalyptic number.

It is an amenable number.

23506685 is a deficient number, since it is larger than the sum of its proper divisors (4701343).

23506685 is an equidigital number, since it uses as much as digits as its factorization.

23506685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4701342.

The product of its (nonzero) digits is 43200, while the sum is 35.

The square root of 23506685 is about 4848.3693134909. The cubic root of 23506685 is about 286.4598735462.

The spelling of 23506685 in words is "twenty-three million, five hundred six thousand, six hundred eighty-five".