513982 has 8 divisors (see below), whose sum is σ = 881136. Its totient is φ = 220272.

The previous prime is 513977. The next prime is 513991. The reversal of 513982 is 289315.

513982 is nontrivially palindromic in base 13.

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

It is a d-powerful number, because it can be written as 5⁶ + 1 + 9⁵ + 3¹¹ + 8⁶ + 2⁴ .

It is a self number, because there is not a number n which added to its sum of digits gives 513982.

It is a congruent number.

It is an unprimeable number.

513982 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18343 + ... + 18370.

It is an arithmetic number, because the mean of its divisors is an integer number (110142).

2⁵¹³⁹⁸² is an apocalyptic number.

513982 is a deficient number, since it is larger than the sum of its proper divisors (367154).

513982 is a wasteful number, since it uses less digits than its factorization.

513982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36722.

The product of its digits is 2160, while the sum is 28.

The square root of 513982 is about 716.9253796596. The cubic root of 513982 is about 80.1030962491.

The spelling of 513982 in words is "five hundred thirteen thousand, nine hundred eighty-two".