18874685 has 8 divisors (see below), whose sum is σ = 22731360. Its totient is φ = 15045264.

The previous prime is 18874649. The next prime is 18874703. The reversal of 18874685 is 58647881.

It is a happy number.

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 18874685 - 2¹⁰ = 18873661 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5255 + ... + 8084.

It is an arithmetic number, because the mean of its divisors is an integer number (2841420).

Almost surely, 2^18874685 is an apocalyptic number.

It is an amenable number.

18874685 is a deficient number, since it is larger than the sum of its proper divisors (3856675).

18874685 is a wasteful number, since it uses less digits than its factorization.

18874685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13627.

The product of its digits is 430080, while the sum is 47.

The square root of 18874685 is about 4344.5005466682. The cubic root of 18874685 is about 266.2522199261.

It can be divided in two parts, 1887468 and 5, that multiplied together give a triangular number (9437340 = T₄₃₄₄).

The spelling of 18874685 in words is "eighteen million, eight hundred seventy-four thousand, six hundred eighty-five".