18000963 has 6 divisors (see below), whose sum is σ = 26001404. Its totient is φ = 12000636.

The previous prime is 18000949. The next prime is 18000971. The reversal of 18000963 is 36900081.

It is not a de Polignac number, because 18000963 - 2⁴ = 18000947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18004963) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1000045 + ... + 1000062.

Almost surely, 2^18000963 is an apocalyptic number.

18000963 is a deficient number, since it is larger than the sum of its proper divisors (8000441).

18000963 is a wasteful number, since it uses less digits than its factorization.

18000963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2000113 (or 2000110 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 18000963 is about 4242.7541762398. The cubic root of 18000963 is about 262.0788129930.

The spelling of 18000963 in words is "eighteen million, nine hundred sixty-three", and thus it is an aban number.