16867261 has 4 divisors (see below), whose sum is σ = 16894624. Its totient is φ = 16839900.

The previous prime is 16867259. The next prime is 16867267. The reversal of 16867261 is 16276861.

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.

It is a cyclic number.

It is not a de Polignac number, because 16867261 - 2¹ = 16867259 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16867261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16867267) 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, 12735 + ... + 13996.

It is an arithmetic number, because the mean of its divisors is an integer number (4223656).

Almost surely, 2^16867261 is an apocalyptic number.

It is an amenable number.

16867261 is a deficient number, since it is larger than the sum of its proper divisors (27363).

16867261 is an equidigital number, since it uses as much as digits as its factorization.

16867261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27362.

The product of its digits is 24192, while the sum is 37.

The square root of 16867261 is about 4106.9771121836. The cubic root of 16867261 is about 256.4571756241.

The spelling of 16867261 in words is "sixteen million, eight hundred sixty-seven thousand, two hundred sixty-one".