2023689 has 4 divisors (see below), whose sum is σ = 2698256. Its totient is φ = 1349124.

The previous prime is 2023667. The next prime is 2023727. The reversal of 2023689 is 9863202.

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 2023689 - 2⁸ = 2023433 is a prime.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2023639) 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, 337279 + ... + 337284.

It is an arithmetic number, because the mean of its divisors is an integer number (674564).

2^2023689 is an apocalyptic number.

It is an amenable number.

2023689 is a deficient number, since it is larger than the sum of its proper divisors (674567).

2023689 is an equidigital number, since it uses as much as digits as its factorization.

2023689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 674566.

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

The square root of 2023689 is about 1422.5642340506. The cubic root of 2023689 is about 126.4875916735.

The spelling of 2023689 in words is "two million, twenty-three thousand, six hundred eighty-nine".