513670 has 16 divisors (see below), whose sum is σ = 955008. Its totient is φ = 198720.

The previous prime is 513649. The next prime is 513673. The reversal of 513670 is 76315.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (513673) by changing a digit.

513670 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 (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 519 + ... + 1138.

It is an arithmetic number, because the mean of its divisors is an integer number (59688).

2⁵¹³⁶⁷⁰ is an apocalyptic number.

513670 is a deficient number, since it is larger than the sum of its proper divisors (441338).

513670 is a wasteful number, since it uses less digits than its factorization.

513670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1695.

The product of its (nonzero) digits is 630, while the sum is 22.

The square root of 513670 is about 716.7077507604. The cubic root of 513670 is about 80.0868847705.

Adding to 513670 its reverse (76315), we get a palindrome (589985).

It can be divided in two parts, 51 and 3670, that added together give a square (3721 = 61²).

The spelling of 513670 in words is "five hundred thirteen thousand, six hundred seventy".