4089023 has 4 divisors (see below), whose sum is σ = 4093608. Its totient is φ = 4084440.

The previous prime is 4089017. The next prime is 4089037. The reversal of 4089023 is 3209804.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 4089023 - 2⁸ = 4088767 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4088983 and 4089001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4089073) 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, 473 + ... + 2898.

It is an arithmetic number, because the mean of its divisors is an integer number (1023402).

Almost surely, 2^4089023 is an apocalyptic number.

4089023 is a deficient number, since it is larger than the sum of its proper divisors (4585).

4089023 is a wasteful number, since it uses less digits than its factorization.

4089023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4584.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 4089023 is about 2022.1332794848. The cubic root of 4089023 is about 159.9091020153.

The spelling of 4089023 in words is "four million, eighty-nine thousand, twenty-three".