16820006 has 16 divisors (see below), whose sum is σ = 28905216. Its totient is φ = 7190856.

The previous prime is 16819993. The next prime is 16820017. The reversal of 16820006 is 60002861.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5585 + ... + 8051.

It is an arithmetic number, because the mean of its divisors is an integer number (1806576).

Almost surely, 2^16820006 is an apocalyptic number.

16820006 is a deficient number, since it is larger than the sum of its proper divisors (12085210).

16820006 is a wasteful number, since it uses less digits than its factorization.

16820006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2963.

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 16820006 is about 4101.2200623717. The cubic root of 16820006 is about 256.2174564264.

Adding to 16820006 its reverse (60002861), we get a palindrome (76822867).

The spelling of 16820006 in words is "sixteen million, eight hundred twenty thousand, six".