20597104 has 30 divisors (see below), whose sum is σ = 43868720. Its totient is φ = 9361440.

The previous prime is 20597099. The next prime is 20597107. The reversal of 20597104 is 40179502.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20597107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3384 + ... + 7255.

Almost surely, 2^20597104 is an apocalyptic number.

It is an amenable number.

20597104 is an abundant number, since it is smaller than the sum of its proper divisors (23271616).

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

20597104 is a wasteful number, since it uses less digits than its factorization.

20597104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10669 (or 10652 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 20597104 is about 4538.4032434327. The cubic root of 20597104 is about 274.1166321093.

The spelling of 20597104 in words is "twenty million, five hundred ninety-seven thousand, one hundred four".