16890341 has 4 divisors (see below), whose sum is σ = 18189612. Its totient is φ = 15591072.

The previous prime is 16890337. The next prime is 16890347. The reversal of 16890341 is 14309861.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 11082241 + 5808100 = 3329^2 + 2410^2 .

It is a cyclic number.

It is not a de Polignac number, because 16890341 - 2² = 16890337 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16890298 and 16890307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16890347) 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, 649616 + ... + 649641.

It is an arithmetic number, because the mean of its divisors is an integer number (4547403).

Almost surely, 2^16890341 is an apocalyptic number.

It is an amenable number.

16890341 is a deficient number, since it is larger than the sum of its proper divisors (1299271).

16890341 is a wasteful number, since it uses less digits than its factorization.

16890341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1299270.

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 16890341 is about 4109.7860041613. The cubic root of 16890341 is about 256.5740950997.

It can be divided in two parts, 168 and 90341, that added together give a palindrome (90509).

The spelling of 16890341 in words is "sixteen million, eight hundred ninety thousand, three hundred forty-one".