513860447 has 4 divisors (see below), whose sum is σ = 524793696. Its totient is φ = 502927200.

The previous prime is 513860443. The next prime is 513860471. The reversal of 513860447 is 744068315.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 513860447 - 2² = 513860443 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 513860447.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (513860443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5466554 + ... + 5466647.

It is an arithmetic number, because the mean of its divisors is an integer number (131198424).

Almost surely, 2^513860447 is an apocalyptic number.

513860447 is a deficient number, since it is larger than the sum of its proper divisors (10933249).

513860447 is a wasteful number, since it uses less digits than its factorization.

513860447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10933248.

The product of its (nonzero) digits is 80640, while the sum is 38.

The square root of 513860447 is about 22668.4901791010. The cubic root of 513860447 is about 800.9678115164.

The spelling of 513860447 in words is "five hundred thirteen million, eight hundred sixty thousand, four hundred forty-seven".