513989 has 8 divisors (see below), whose sum is σ = 594048. Its totient is φ = 435600.

The previous prime is 513977. The next prime is 513991. The reversal of 513989 is 989315.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-513989 is a prime.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 513989.

It is not an unprimeable number, because it can be changed into a prime (510989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 344 + ... + 1070.

It is an arithmetic number, because the mean of its divisors is an integer number (74256).

2⁵¹³⁹⁸⁹ is an apocalyptic number.

It is an amenable number.

513989 is a deficient number, since it is larger than the sum of its proper divisors (80059).

513989 is a wasteful number, since it uses less digits than its factorization.

513989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 835.

The product of its digits is 9720, while the sum is 35.

The square root of 513989 is about 716.9302616015. The cubic root of 513989 is about 80.1034598930.

The spelling of 513989 in words is "five hundred thirteen thousand, nine hundred eighty-nine".