16226687 has 8 divisors (see below), whose sum is σ = 17335296. Its totient is φ = 15135232.

The previous prime is 16226681. The next prime is 16226701. The reversal of 16226687 is 78662261.

It is a happy number.

16226687 is nontrivially palindromic in base 16.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16226687 - 2¹⁶ = 16161151 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 16226687.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16226681) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2303 + ... + 6144.

It is an arithmetic number, because the mean of its divisors is an integer number (2166912).

Almost surely, 2^16226687 is an apocalyptic number.

16226687 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

16226687 is a deficient number, since it is larger than the sum of its proper divisors (1108609).

16226687 is a wasteful number, since it uses less digits than its factorization.

16226687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8577.

The product of its digits is 48384, while the sum is 38.

The square root of 16226687 is about 4028.2362145237. The cubic root of 16226687 is about 253.1686658805.

The spelling of 16226687 in words is "sixteen million, two hundred twenty-six thousand, six hundred eighty-seven".