6389723 has 4 divisors (see below), whose sum is σ = 6485160. Its totient is φ = 6294288.

The previous prime is 6389717. The next prime is 6389729. The reversal of 6389723 is 3279836.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (6389717) and next prime (6389729).

It is a cyclic number.

It is not a de Polignac number, because 6389723 - 2¹⁸ = 6127579 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6389729) 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, 47618 + ... + 47751.

It is an arithmetic number, because the mean of its divisors is an integer number (1621290).

Almost surely, 2^6389723 is an apocalyptic number.

6389723 is a deficient number, since it is larger than the sum of its proper divisors (95437).

6389723 is an equidigital number, since it uses as much as digits as its factorization.

6389723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95436.

The product of its digits is 54432, while the sum is 38.

The square root of 6389723 is about 2527.7901416059. The cubic root of 6389723 is about 185.5641217528.

The spelling of 6389723 in words is "six million, three hundred eighty-nine thousand, seven hundred twenty-three".