619023 has 4 divisors (see below), whose sum is σ = 825368. Its totient is φ = 412680.

The previous prime is 619019. The next prime is 619027. The reversal of 619023 is 320916.

619023 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 (619019) and next prime (619027).

It is not a de Polignac number, because 619023 - 2² = 619019 is a prime.

It is a D-number.

It is a Duffinian number.

619023 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (619027) 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, 103168 + ... + 103173.

It is an arithmetic number, because the mean of its divisors is an integer number (206342).

2⁶¹⁹⁰²³ is an apocalyptic number.

619023 is a deficient number, since it is larger than the sum of its proper divisors (206345).

619023 is a wasteful number, since it uses less digits than its factorization.

619023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206344.

The product of its (nonzero) digits is 324, while the sum is 21.

The square root of 619023 is about 786.7801471822. The cubic root of 619023 is about 85.2253765138.

Adding to 619023 its reverse (320916), we get a palindrome (939939).

The spelling of 619023 in words is "six hundred nineteen thousand, twenty-three".