20360789 has 4 divisors (see below), whose sum is σ = 20373024. Its totient is φ = 20348556.

The previous prime is 20360779. The next prime is 20360833. The reversal of 20360789 is 98706302.

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, and also an emirpimes, since its reverse is a distinct semiprime: 98706302 = 2 ⋅49353151.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20360789 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 (20360719) 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, 3137 + ... + 7110.

It is an arithmetic number, because the mean of its divisors is an integer number (5093256).

Almost surely, 2^20360789 is an apocalyptic number.

It is an amenable number.

20360789 is a deficient number, since it is larger than the sum of its proper divisors (12235).

20360789 is a wasteful number, since it uses less digits than its factorization.

20360789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12234.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 20360789 is about 4512.2930977497. The cubic root of 20360789 is about 273.0642641002.

The spelling of 20360789 in words is "twenty million, three hundred sixty thousand, seven hundred eighty-nine".