16685427 has 8 divisors (see below), whose sum is σ = 24269760. Its totient is φ = 10112360.

The previous prime is 16685413. The next prime is 16685437. The reversal of 16685427 is 72458661.

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 16685427 - 2⁷ = 16685299 is a prime.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (16685437) 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, 252777 + ... + 252842.

It is an arithmetic number, because the mean of its divisors is an integer number (3033720).

Almost surely, 2^16685427 is an apocalyptic number.

16685427 is a deficient number, since it is larger than the sum of its proper divisors (7584333).

16685427 is a wasteful number, since it uses less digits than its factorization.

16685427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 505633.

The product of its digits is 80640, while the sum is 39.

The square root of 16685427 is about 4084.7799206322. The cubic root of 16685427 is about 255.5322829959.

The spelling of 16685427 in words is "sixteen million, six hundred eighty-five thousand, four hundred twenty-seven".