16838961 has 4 divisors (see below), whose sum is σ = 22451952. Its totient is φ = 11225972.

The previous prime is 16838923. The next prime is 16838971. The reversal of 16838961 is 16983861.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 16983861 = 3 ⋅5661287.

It is a cyclic number.

It is not a de Polignac number, because 16838961 - 2¹⁰ = 16837937 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (16838971) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2806491 + ... + 2806496.

It is an arithmetic number, because the mean of its divisors is an integer number (5612988).

Almost surely, 2^16838961 is an apocalyptic number.

It is an amenable number.

16838961 is a deficient number, since it is larger than the sum of its proper divisors (5612991).

16838961 is an equidigital number, since it uses as much as digits as its factorization.

16838961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5612990.

The product of its digits is 62208, while the sum is 42.

The square root of 16838961 is about 4103.5303093800. The cubic root of 16838961 is about 256.3136668295.

The spelling of 16838961 in words is "sixteen million, eight hundred thirty-eight thousand, nine hundred sixty-one".