23782685 has 4 divisors (see below), whose sum is σ = 28539228. Its totient is φ = 19026144.

The previous prime is 23782631. The next prime is 23782691. The reversal of 23782685 is 58628732.

23782685 is nontrivially palindromic in base 13.

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 6832996 + 16949689 = 2614^2 + 4117^2 .

It is a cyclic number.

It is not a de Polignac number, because 23782685 - 2¹² = 23778589 is a prime.

It is a super-2 number, since 2×23782685² = 1131232211618450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2378264 + ... + 2378273.

It is an arithmetic number, because the mean of its divisors is an integer number (7134807).

Almost surely, 2^23782685 is an apocalyptic number.

It is an amenable number.

23782685 is a deficient number, since it is larger than the sum of its proper divisors (4756543).

23782685 is an equidigital number, since it uses as much as digits as its factorization.

23782685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4756542.

The product of its digits is 161280, while the sum is 41.

The square root of 23782685 is about 4876.7494296919. The cubic root of 23782685 is about 287.5766550483.

The spelling of 23782685 in words is "twenty-three million, seven hundred eighty-two thousand, six hundred eighty-five".