513998 has 8 divisors (see below), whose sum is σ = 775008. Its totient is φ = 255664.

The previous prime is 513991. The next prime is 514001. The reversal of 513998 is 899315.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (513991) 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, 86 + ... + 1017.

It is an arithmetic number, because the mean of its divisors is an integer number (96876).

2⁵¹³⁹⁹⁸ is an apocalyptic number.

513998 is a deficient number, since it is larger than the sum of its proper divisors (261010).

513998 is a wasteful number, since it uses less digits than its factorization.

513998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1338.

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

The square root of 513998 is about 716.9365383352. The cubic root of 513998 is about 80.1039274302.

The spelling of 513998 in words is "five hundred thirteen thousand, nine hundred ninety-eight".