20620593 has 12 divisors (see below), whose sum is σ = 34040448. Its totient is φ = 11783160.

The previous prime is 20620591. The next prime is 20620597. The reversal of 20620593 is 39502602.

It is not a de Polignac number, because 20620593 - 2¹ = 20620591 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (20620591) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 163593 + ... + 163718.

It is an arithmetic number, because the mean of its divisors is an integer number (2836704).

Almost surely, 2^20620593 is an apocalyptic number.

It is an amenable number.

20620593 is a deficient number, since it is larger than the sum of its proper divisors (13419855).

20620593 is a wasteful number, since it uses less digits than its factorization.

20620593 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327324 (or 327321 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 20620593 is about 4540.9903104940. The cubic root of 20620593 is about 274.2207936707.

The spelling of 20620593 in words is "twenty million, six hundred twenty thousand, five hundred ninety-three".