512399 has 4 divisors (see below), whose sum is σ = 528960. Its totient is φ = 495840.

The previous prime is 512389. The next prime is 512419. The reversal of 512399 is 993215.

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

It is a cyclic number.

It is not a de Polignac number, because 512399 - 2¹⁶ = 446863 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (512389) 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, 8234 + ... + 8295.

It is an arithmetic number, because the mean of its divisors is an integer number (132240).

2⁵¹²³⁹⁹ is an apocalyptic number.

512399 is a deficient number, since it is larger than the sum of its proper divisors (16561).

512399 is a wasteful number, since it uses less digits than its factorization.

512399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16560.

The product of its digits is 2430, while the sum is 29.

The square root of 512399 is about 715.8205082281. The cubic root of 512399 is about 80.0207758541.

The spelling of 512399 in words is "five hundred twelve thousand, three hundred ninety-nine".