18456963 has 16 divisors (see below), whose sum is σ = 29095680. Its totient is φ = 10182816.

The previous prime is 18456941. The next prime is 18456967. The reversal of 18456963 is 36965481.

It is not a de Polignac number, because 18456963 - 2⁶ = 18456899 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18456967) 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, 14545 + ... + 15762.

It is an arithmetic number, because the mean of its divisors is an integer number (1818480).

Almost surely, 2^18456963 is an apocalyptic number.

18456963 is a deficient number, since it is larger than the sum of its proper divisors (10638717).

18456963 is a wasteful number, since it uses less digits than its factorization.

18456963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30346.

The product of its digits is 155520, while the sum is 42.

The square root of 18456963 is about 4296.1567708826. The cubic root of 18456963 is about 264.2733767102.

The spelling of 18456963 in words is "eighteen million, four hundred fifty-six thousand, nine hundred sixty-three".