16998963 has 16 divisors (see below), whose sum is σ = 24170400. Its totient is φ = 10589696.

The previous prime is 16998923. The next prime is 16998973. The reversal of 16998963 is 36989961.

It is a cyclic number.

It is not a de Polignac number, because 16998963 - 2⁹ = 16998451 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is not an unprimeable number, because it can be changed into a prime (16998923) 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, 6481 + ... + 8717.

It is an arithmetic number, because the mean of its divisors is an integer number (1510650).

Almost surely, 2^16998963 is an apocalyptic number.

16998963 is a deficient number, since it is larger than the sum of its proper divisors (7171437).

16998963 is a wasteful number, since it uses less digits than its factorization.

16998963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2406.

The product of its digits is 629856, while the sum is 51.

The square root of 16998963 is about 4122.9798689783. The cubic root of 16998963 is about 257.1229306869.

The spelling of 16998963 in words is "sixteen million, nine hundred ninety-eight thousand, nine hundred sixty-three".