20836606 has 16 divisors (see below), whose sum is σ = 35807616. Its totient is φ = 8908056.

The previous prime is 20836589. The next prime is 20836631. The reversal of 20836606 is 60663802.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4945 + ... + 8131.

It is an arithmetic number, because the mean of its divisors is an integer number (2237976).

Almost surely, 2^20836606 is an apocalyptic number.

20836606 is a deficient number, since it is larger than the sum of its proper divisors (14971010).

20836606 is a wasteful number, since it uses less digits than its factorization.

20836606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3663.

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 20836606 is about 4564.7131344697. The cubic root of 20836606 is about 275.1750114632.

The spelling of 20836606 in words is "twenty million, eight hundred thirty-six thousand, six hundred six".