513899988 has 96 divisors (see below), whose sum is σ = 1399910400. Its totient is φ = 143700480.

The previous prime is 513899963. The next prime is 513899999. The reversal of 513899988 is 889998315.

It is a super-3 number, since 3×513899988³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1186620 + ... + 1187052.

It is an arithmetic number, because the mean of its divisors is an integer number (14582400).

Almost surely, 2^513899988 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 513899988, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (699955200).

513899988 is an abundant number, since it is smaller than the sum of its proper divisors (886010412).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

513899988 is a wasteful number, since it uses less digits than its factorization.

513899988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 717 (or 715 counting only the distinct ones).

The product of its digits is 5598720, while the sum is 60.

The square root of 513899988 is about 22669.3623201007. The cubic root of 513899988 is about 800.9883555222.

The spelling of 513899988 in words is "five hundred thirteen million, eight hundred ninety-nine thousand, nine hundred eighty-eight".