20070106 has 12 divisors (see below), whose sum is σ = 35020458. Its totient is φ = 8601432.

The previous prime is 20070103. The next prime is 20070107. The reversal of 20070106 is 60107002.

It can be written as a sum of positive squares in only one way, i.e., 16883881 + 3186225 = 4109^2 + 1785^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 20070106.

It is not an unprimeable number, because it can be changed into a prime (20070101) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 102301 + ... + 102496.

Almost surely, 2^20070106 is an apocalyptic number.

20070106 is a deficient number, since it is larger than the sum of its proper divisors (14950352).

20070106 is a wasteful number, since it uses less digits than its factorization.

20070106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204813 (or 204806 counting only the distinct ones).

The product of its (nonzero) digits is 84, while the sum is 16.

The square root of 20070106 is about 4479.9671873798. The cubic root of 20070106 is about 271.7585533997.

Adding to 20070106 its reverse (60107002), we get a palindrome (80177108).

The spelling of 20070106 in words is "twenty million, seventy thousand, one hundred six".