20703606 has 64 divisors (see below), whose sum is σ = 52932096. Its totient is φ = 5241600.

The previous prime is 20703601. The next prime is 20703619. The reversal of 20703606 is 60630702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20703601) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18396 + ... + 19488.

It is an arithmetic number, because the mean of its divisors is an integer number (827064).

Almost surely, 2^20703606 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20703606, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26466048).

20703606 is an abundant number, since it is smaller than the sum of its proper divisors (32228490).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20703606 is a wasteful number, since it uses less digits than its factorization.

20703606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1157.

The product of its (nonzero) digits is 1512, while the sum is 24.

The square root of 20703606 is about 4550.1215368383. The cubic root of 20703606 is about 274.5882808677.

The spelling of 20703606 in words is "twenty million, seven hundred three thousand, six hundred six".