18676685 has 8 divisors (see below), whose sum is σ = 22719480. Its totient is φ = 14736384.

The previous prime is 18676673. The next prime is 18676687. The reversal of 18676685 is 58667681.

It can be written as a sum of positive squares in 4 ways, for example, as 178084 + 18498601 = 422^2 + 4301^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 18676685 - 2¹⁸ = 18414541 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18676687) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25220 + ... + 25949.

It is an arithmetic number, because the mean of its divisors is an integer number (2839935).

Almost surely, 2^18676685 is an apocalyptic number.

It is an amenable number.

18676685 is a deficient number, since it is larger than the sum of its proper divisors (4042795).

18676685 is an equidigital number, since it uses as much as digits as its factorization.

18676685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51247.

The product of its digits is 483840, while the sum is 47.

The square root of 18676685 is about 4321.6530402151. The cubic root of 18676685 is about 265.3179286122.

The spelling of 18676685 in words is "eighteen million, six hundred seventy-six thousand, six hundred eighty-five".