16216839 has 6 divisors (see below), whose sum is σ = 23424336. Its totient is φ = 10811220.

The previous prime is 16216831. The next prime is 16216873. The reversal of 16216839 is 93861261.

It is not a de Polignac number, because 16216839 - 2³ = 16216831 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16216831) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 900927 + ... + 900944.

It is an arithmetic number, because the mean of its divisors is an integer number (3904056).

Almost surely, 2^16216839 is an apocalyptic number.

16216839 is a deficient number, since it is larger than the sum of its proper divisors (7207497).

16216839 is a wasteful number, since it uses less digits than its factorization.

16216839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1801877 (or 1801874 counting only the distinct ones).

The product of its digits is 15552, while the sum is 36.

The square root of 16216839 is about 4027.0136577866. The cubic root of 16216839 is about 253.1174393718.

The spelling of 16216839 in words is "sixteen million, two hundred sixteen thousand, eight hundred thirty-nine".