663084 has 36 divisors (see below), whose sum is σ = 1701336. Its totient is φ = 217728.

The previous prime is 663071. The next prime is 663097. The reversal of 663084 is 480366.

It is an interprime number because it is at equal distance from previous prime (663071) and next prime (663097).

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

663084 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 11 ways as a sum of consecutive naturals, for example, 3987 + ... + 4149.

2⁶⁶³⁰⁸⁴ is an apocalyptic number.

It is an amenable number.

663084 is an abundant number, since it is smaller than the sum of its proper divisors (1038252).

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

663084 is a wasteful number, since it uses less digits than its factorization.

663084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286 (or 281 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 663084 is about 814.2996991280. The cubic root of 663084 is about 87.2012779321.

The spelling of 663084 in words is "six hundred sixty-three thousand, eighty-four".