16820606 has 16 divisors (see below), whose sum is σ = 27675648. Its totient is φ = 7603800.

The previous prime is 16820603. The next prime is 16820647. The reversal of 16820606 is 60602861.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16820603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2201 + ... + 6203.

It is an arithmetic number, because the mean of its divisors is an integer number (1729728).

Almost surely, 2^16820606 is an apocalyptic number.

16820606 is a deficient number, since it is larger than the sum of its proper divisors (10855042).

16820606 is a wasteful number, since it uses less digits than its factorization.

16820606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4207.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 16820606 is about 4101.2932106837. The cubic root of 16820606 is about 256.2205029700.

The spelling of 16820606 in words is "sixteen million, eight hundred twenty thousand, six hundred six".