20170106 has 32 divisors (see below), whose sum is σ = 34473600. Its totient is φ = 8769600.

The previous prime is 20170081. The next prime is 20170121. The reversal of 20170106 is 60107102.

It is a happy number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57620 + ... + 57968.

It is an arithmetic number, because the mean of its divisors is an integer number (1077300).

Almost surely, 2^20170106 is an apocalyptic number.

20170106 is a deficient number, since it is larger than the sum of its proper divisors (14303494).

20170106 is a wasteful number, since it uses less digits than its factorization.

20170106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 470.

The product of its (nonzero) digits is 84, while the sum is 17.

The square root of 20170106 is about 4491.1141156733. The cubic root of 20170106 is about 272.2091546568.

Adding to 20170106 its reverse (60107102), we get a palindrome (80277208).

It can be divided in two parts, 201 and 70106, that added together give a palindrome (70307).

The spelling of 20170106 in words is "twenty million, one hundred seventy thousand, one hundred six".