513780 has 24 divisors (see below), whose sum is σ = 1438752. Its totient is φ = 136992.

The previous prime is 513769. The next prime is 513781. The reversal of 513780 is 87315.

It is a self number, because there is not a number n which added to its sum of digits gives 513780.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (513781) by changing a digit.

513780 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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, 4222 + ... + 4341.

It is an arithmetic number, because the mean of its divisors is an integer number (59948).

2⁵¹³⁷⁸⁰ is an apocalyptic number.

It is an amenable number.

513780 is an abundant number, since it is smaller than the sum of its proper divisors (924972).

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

513780 is a wasteful number, since it uses less digits than its factorization.

513780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8575 (or 8573 counting only the distinct ones).

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

The square root of 513780 is about 716.7844864393. The cubic root of 513780 is about 80.0926011049.

The spelling of 513780 in words is "five hundred thirteen thousand, seven hundred eighty".