20892106 has 8 divisors (see below), whose sum is σ = 31511844. Its totient is φ = 10388160.

The previous prime is 20892101. The next prime is 20892121. The reversal of 20892106 is 60129802.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 17147881 + 3744225 = 4141^2 + 1935^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (20892101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28495 + ... + 29218.

Almost surely, 2^20892106 is an apocalyptic number.

20892106 is a deficient number, since it is larger than the sum of its proper divisors (10619738).

20892106 is a wasteful number, since it uses less digits than its factorization.

20892106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57896.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 20892106 is about 4570.7883346311. The cubic root of 20892106 is about 275.4191118950.

Subtracting 20892106 from its reverse (60129802), we obtain a square (39237696 = 6264²).

The spelling of 20892106 in words is "twenty million, eight hundred ninety-two thousand, one hundred six".