20607696 has 50 divisors (see below), whose sum is σ = 59648402. Its totient is φ = 6868800.

The previous prime is 20607673. The next prime is 20607709. The reversal of 20607696 is 69670602.

It can be written as a sum of positive squares in only one way, i.e., 20575296 + 32400 = 4536^2 + 180^2 .

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 20607696.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 6655 + ... + 9246.

Almost surely, 2^20607696 is an apocalyptic number.

It is an amenable number.

20607696 is an abundant number, since it is smaller than the sum of its proper divisors (39040706).

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

20607696 is a wasteful number, since it uses less digits than its factorization.

20607696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15921 (or 15906 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 36.

The square root of 20607696 is about 4539.5700236917. The cubic root of 20607696 is about 274.1636119470.

The spelling of 20607696 in words is "twenty million, six hundred seven thousand, six hundred ninety-six".