18852963 has 16 divisors (see below), whose sum is σ = 25994496. Its totient is φ = 12146400.

The previous prime is 18852947. The next prime is 18852971. The reversal of 18852963 is 36925881.

It is a Cunningham number, because it is equal to 4342²-1.

It is not a de Polignac number, because 18852963 - 2⁴ = 18852947 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18852913) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12306 + ... + 13752.

It is an arithmetic number, because the mean of its divisors is an integer number (1624656).

Almost surely, 2^18852963 is an apocalyptic number.

18852963 is a deficient number, since it is larger than the sum of its proper divisors (7141533).

18852963 is a wasteful number, since it uses less digits than its factorization.

18852963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1594.

The product of its digits is 103680, while the sum is 42.

The square root of 18852963 is about 4341.9998848457. Note that the first 3 decimals coincide. The cubic root of 18852963 is about 266.1500416062.

The spelling of 18852963 in words is "eighteen million, eight hundred fifty-two thousand, nine hundred sixty-three".