16839955 has 24 divisors (see below), whose sum is σ = 22674960. Its totient is φ = 11905920.

The previous prime is 16839931. The next prime is 16839967. The reversal of 16839955 is 55993861.

It is not a de Polignac number, because 16839955 - 2¹⁷ = 16708883 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 154441 + ... + 154549.

It is an arithmetic number, because the mean of its divisors is an integer number (944790).

Almost surely, 2^16839955 is an apocalyptic number.

16839955 is a deficient number, since it is larger than the sum of its proper divisors (5835005).

16839955 is a wasteful number, since it uses less digits than its factorization.

16839955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231 (or 178 counting only the distinct ones).

The product of its digits is 291600, while the sum is 46.

The square root of 16839955 is about 4103.6514228185. The cubic root of 16839955 is about 256.3187101092.

The spelling of 16839955 in words is "sixteen million, eight hundred thirty-nine thousand, nine hundred fifty-five".