16659427 has 8 divisors (see below), whose sum is σ = 17348400. Its totient is φ = 15978144.

The previous prime is 16659413. The next prime is 16659463. The reversal of 16659427 is 72495661.

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 16659427 - 2²³ = 8270819 is a prime.

It is a Duffinian number.

It is a zygodrome in base 2.

It is a self number, because there is not a number n which added to its sum of digits gives 16659427.

It is not an unprimeable number, because it can be changed into a prime (16659497) 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, 2724 + ... + 6382.

It is an arithmetic number, because the mean of its divisors is an integer number (2168550).

Almost surely, 2^16659427 is an apocalyptic number.

16659427 is a deficient number, since it is larger than the sum of its proper divisors (688973).

16659427 is a wasteful number, since it uses less digits than its factorization.

16659427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3845.

The product of its digits is 90720, while the sum is 40.

The square root of 16659427 is about 4081.5961338672. The cubic root of 16659427 is about 255.3994866089.

The spelling of 16659427 in words is "sixteen million, six hundred fifty-nine thousand, four hundred twenty-seven".