18947675 has 12 divisors (see below), whose sum is σ = 23580336. Its totient is φ = 15103200.

The previous prime is 18947633. The next prime is 18947711. The reversal of 18947675 is 57674981.

It is not a de Polignac number, because 18947675 - 2⁶ = 18947611 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6557 + ... + 8993.

It is an arithmetic number, because the mean of its divisors is an integer number (1965028).

Almost surely, 2^18947675 is an apocalyptic number.

18947675 is a deficient number, since it is larger than the sum of its proper divisors (4632661).

18947675 is a wasteful number, since it uses less digits than its factorization.

18947675 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2758 (or 2753 counting only the distinct ones).

The product of its digits is 423360, while the sum is 47.

The square root of 18947675 is about 4352.8927163439. The cubic root of 18947675 is about 266.5949850736.

The spelling of 18947675 in words is "eighteen million, nine hundred forty-seven thousand, six hundred seventy-five".