20705606 has 8 divisors (see below), whose sum is σ = 31366224. Its totient is φ = 10250200.

The previous prime is 20705593. The next prime is 20705621. The reversal of 20705606 is 60650702.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51050 + ... + 51453.

It is an arithmetic number, because the mean of its divisors is an integer number (3920778).

Almost surely, 2^20705606 is an apocalyptic number.

20705606 is a deficient number, since it is larger than the sum of its proper divisors (10660618).

20705606 is a wasteful number, since it uses less digits than its factorization.

20705606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102606.

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 20705606 is about 4550.3413058803. The cubic root of 20705606 is about 274.5971224656.

The spelling of 20705606 in words is "twenty million, seven hundred five thousand, six hundred six".