16606937 has 4 divisors (see below), whose sum is σ = 17179620. Its totient is φ = 16034256.

The previous prime is 16606921. The next prime is 16606939. The reversal of 16606937 is 73960661.

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 9616201 + 6990736 = 3101^2 + 2644^2 .

It is a cyclic number.

It is not a de Polignac number, because 16606937 - 2⁴ = 16606921 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 16606937.

It is not an unprimeable number, because it can be changed into a prime (16606939) 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, 286298 + ... + 286355.

It is an arithmetic number, because the mean of its divisors is an integer number (4294905).

Almost surely, 2^16606937 is an apocalyptic number.

It is an amenable number.

16606937 is a deficient number, since it is larger than the sum of its proper divisors (572683).

16606937 is an equidigital number, since it uses as much as digits as its factorization.

16606937 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 572682.

The product of its (nonzero) digits is 40824, while the sum is 38.

The square root of 16606937 is about 4075.1609784155. The cubic root of 16606937 is about 255.1309695025.

The spelling of 16606937 in words is "sixteen million, six hundred six thousand, nine hundred thirty-seven".