20293589 has 4 divisors (see below), whose sum is σ = 20307456. Its totient is φ = 20279724.

The previous prime is 20293579. The next prime is 20293607. The reversal of 20293589 is 98539202.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20293589 - 2⁸ = 20293333 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20293579) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4439 + ... + 7764.

It is an arithmetic number, because the mean of its divisors is an integer number (5076864).

Almost surely, 2^20293589 is an apocalyptic number.

It is an amenable number.

20293589 is a deficient number, since it is larger than the sum of its proper divisors (13867).

20293589 is a wasteful number, since it uses less digits than its factorization.

20293589 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13866.

The product of its (nonzero) digits is 38880, while the sum is 38.

The square root of 20293589 is about 4504.8406187123. The cubic root of 20293589 is about 272.7635202967.

The spelling of 20293589 in words is "twenty million, two hundred ninety-three thousand, five hundred eighty-nine".