18297963 has 12 divisors (see below), whose sum is σ = 26678808. Its totient is φ = 12084000.

The previous prime is 18297953. The next prime is 18297973. The reversal of 18297963 is 36979281.

It is an interprime number because it is at equal distance from previous prime (18297953) and next prime (18297973).

It is not a de Polignac number, because 18297963 - 2¹⁶ = 18232427 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18297953) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8538 + ... + 10463.

It is an arithmetic number, because the mean of its divisors is an integer number (2223234).

Almost surely, 2^18297963 is an apocalyptic number.

18297963 is a deficient number, since it is larger than the sum of its proper divisors (8380845).

18297963 is a wasteful number, since it uses less digits than its factorization.

18297963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19114 (or 19111 counting only the distinct ones).

The product of its digits is 163296, while the sum is 45.

The square root of 18297963 is about 4277.6118337222. The cubic root of 18297963 is about 263.5123141870.

The spelling of 18297963 in words is "eighteen million, two hundred ninety-seven thousand, nine hundred sixty-three".