16839995 has 16 divisors (see below), whose sum is σ = 20897568. Its totient is φ = 13017600.

The previous prime is 16839967. The next prime is 16839997. The reversal of 16839995 is 59993861.

It is not a de Polignac number, because 16839995 - 2⁶ = 16839931 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16839997) 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, 41795 + ... + 42195.

It is an arithmetic number, because the mean of its divisors is an integer number (1306098).

Almost surely, 2^16839995 is an apocalyptic number.

16839995 is a deficient number, since it is larger than the sum of its proper divisors (4057573).

16839995 is a wasteful number, since it uses less digits than its factorization.

16839995 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 670.

The product of its digits is 524880, while the sum is 50.

The square root of 16839995 is about 4103.6562965239. The cubic root of 16839995 is about 256.3189130540.

The spelling of 16839995 in words is "sixteen million, eight hundred thirty-nine thousand, nine hundred ninety-five".