516849 has 4 divisors (see below), whose sum is σ = 689136. Its totient is φ = 344564.

The previous prime is 516847. The next prime is 516871. The reversal of 516849 is 948615.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 516849 - 2¹ = 516847 is a prime.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (516847) 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, 86139 + ... + 86144.

It is an arithmetic number, because the mean of its divisors is an integer number (172284).

2⁵¹⁶⁸⁴⁹ is an apocalyptic number.

It is an amenable number.

516849 is a deficient number, since it is larger than the sum of its proper divisors (172287).

516849 is a wasteful number, since it uses less digits than its factorization.

516849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172286.

The product of its digits is 8640, while the sum is 33.

The square root of 516849 is about 718.9221098283. The cubic root of 516849 is about 80.2517589700.

The spelling of 516849 in words is "five hundred sixteen thousand, eight hundred forty-nine".