513487797 has 32 divisors (see below), whose sum is σ = 716636160. Its totient is φ = 326813760.

The previous prime is 513487783. The next prime is 513487801. The reversal of 513487797 is 797784315.

It is not a de Polignac number, because 513487797 - 2⁴ = 513487781 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (513487727) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1191172 + ... + 1191602.

It is an arithmetic number, because the mean of its divisors is an integer number (22394880).

Almost surely, 2^513487797 is an apocalyptic number.

It is an amenable number.

513487797 is a deficient number, since it is larger than the sum of its proper divisors (203148363).

513487797 is a wasteful number, since it uses less digits than its factorization.

513487797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 673.

The product of its digits is 1481760, while the sum is 51.

The square root of 513487797 is about 22660.2691290285. The cubic root of 513487797 is about 800.7741449038.

The spelling of 513487797 in words is "five hundred thirteen million, four hundred eighty-seven thousand, seven hundred ninety-seven".