513400084 has 12 divisors (see below), whose sum is σ = 903831264. Its totient is φ = 255162584.

The previous prime is 513400081. The next prime is 513400109. The reversal of 513400084 is 480004315.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (513400081) 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, 383614 + ... + 384949.

It is an arithmetic number, because the mean of its divisors is an integer number (75319272).

Almost surely, 2^513400084 is an apocalyptic number.

It is an amenable number.

513400084 is a deficient number, since it is larger than the sum of its proper divisors (390431180).

513400084 is a wasteful number, since it uses less digits than its factorization.

513400084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 768734 (or 768732 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 513400084 is about 22658.3336545298. Note that the first 3 decimals coincide. The cubic root of 513400084 is about 800.7285467398.

Adding to 513400084 its reverse (480004315), we get a palindrome (993404399).

The spelling of 513400084 in words is "five hundred thirteen million, four hundred thousand, eighty-four".