16899963 has 16 divisors (see below), whose sum is σ = 23608320. Its totient is φ = 10753512.

The previous prime is 16899959. The next prime is 16899973. The reversal of 16899963 is 36999861.

It is not a de Polignac number, because 16899963 - 2² = 16899959 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16899973) 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, 36270 + ... + 36732.

It is an arithmetic number, because the mean of its divisors is an integer number (1475520).

Almost surely, 2^16899963 is an apocalyptic number.

16899963 is a deficient number, since it is larger than the sum of its proper divisors (6708357).

16899963 is an frugal number, since it uses more digits than its factorization.

16899963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 535 (or 489 counting only the distinct ones).

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

The square root of 16899963 is about 4110.9564580521. The cubic root of 16899963 is about 256.6228071081.

The spelling of 16899963 in words is "sixteen million, eight hundred ninety-nine thousand, nine hundred sixty-three".