516449 has 2 divisors, whose sum is σ = 516450. Its totient is φ = 516448.

The previous prime is 516437. The next prime is 516457. The reversal of 516449 is 944615.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 446224 + 70225 = 668^2 + 265^2 .

It is a cyclic number.

It is not a de Polignac number, because 516449 - 2⁴ = 516433 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (516469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 258224 + 258225.

It is an arithmetic number, because the mean of its divisors is an integer number (258225).

2⁵¹⁶⁴⁴⁹ is an apocalyptic number.

It is an amenable number.

516449 is a deficient number, since it is larger than the sum of its proper divisors (1).

516449 is an equidigital number, since it uses as much as digits as its factorization.

516449 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4320, while the sum is 29.

The square root of 516449 is about 718.6438617285. The cubic root of 516449 is about 80.2310508017.

The spelling of 516449 in words is "five hundred sixteen thousand, four hundred forty-nine".