519966 has 16 divisors (see below), whose sum is σ = 1155600. Its totient is φ = 173304.

The previous prime is 519947. The next prime is 519971. The reversal of 519966 is 669915.

It is a self number, because there is not a number n which added to its sum of digits gives 519966.

It is a congruent number.

It is an unprimeable number.

519966 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4761 + ... + 4868.

It is an arithmetic number, because the mean of its divisors is an integer number (72225).

2⁵¹⁹⁹⁶⁶ is an apocalyptic number.

519966 is an abundant number, since it is smaller than the sum of its proper divisors (635634).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

519966 is a wasteful number, since it uses less digits than its factorization.

519966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9640 (or 9634 counting only the distinct ones).

The product of its digits is 14580, while the sum is 36.

The square root of 519966 is about 721.0866799491. The cubic root of 519966 is about 80.4127625095.

It can be divided in two parts, 519 and 966, that added together give a triangular number (1485 = T₅₄).

The spelling of 519966 in words is "five hundred nineteen thousand, nine hundred sixty-six".