513870 has 32 divisors (see below), whose sum is σ = 1410048. Its totient is φ = 117408.

The previous prime is 513841. The next prime is 513871. The reversal of 513870 is 78315.

It is a self number, because there is not a number n which added to its sum of digits gives 513870.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (513871) 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 15 ways as a sum of consecutive naturals, for example, 1014 + ... + 1433.

It is an arithmetic number, because the mean of its divisors is an integer number (44064).

2⁵¹³⁸⁷⁰ is an apocalyptic number.

513870 is an abundant number, since it is smaller than the sum of its proper divisors (896178).

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

513870 is a wasteful number, since it uses less digits than its factorization.

513870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2464.

The product of its (nonzero) digits is 840, while the sum is 24.

The square root of 513870 is about 716.8472640668. The cubic root of 513870 is about 80.0972774990.

The spelling of 513870 in words is "five hundred thirteen thousand, eight hundred seventy".