20230689 has 4 divisors (see below), whose sum is σ = 26974256. Its totient is φ = 13487124.

The previous prime is 20230667. The next prime is 20230741. The reversal of 20230689 is 98603202.

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 not a de Polignac number, because 20230689 - 2⁵ = 20230657 is a prime.

It is a super-3 number, since 3×20230689³ (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20230619) 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, 3371779 + ... + 3371784.

It is an arithmetic number, because the mean of its divisors is an integer number (6743564).

Almost surely, 2^20230689 is an apocalyptic number.

It is an amenable number.

20230689 is a deficient number, since it is larger than the sum of its proper divisors (6743567).

20230689 is an equidigital number, since it uses as much as digits as its factorization.

20230689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6743566.

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 20230689 is about 4497.8538215464. The cubic root of 20230689 is about 272.4814183665.

The spelling of 20230689 in words is "twenty million, two hundred thirty thousand, six hundred eighty-nine".