663376 has 20 divisors (see below), whose sum is σ = 1469152. Its totient is φ = 284256.

The previous prime is 663371. The next prime is 663407. The reversal of 663376 is 673366.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (663371) by changing a digit.

663376 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 3 ways as a sum of consecutive naturals, for example, 2850 + ... + 3073.

2⁶⁶³³⁷⁶ is an apocalyptic number.

It is an amenable number.

663376 is an abundant number, since it is smaller than the sum of its proper divisors (805776).

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

663376 is a wasteful number, since it uses less digits than its factorization.

663376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5938 (or 5932 counting only the distinct ones).

The product of its digits is 13608, while the sum is 31.

The square root of 663376 is about 814.4789745598. The cubic root of 663376 is about 87.2140762283.

The spelling of 663376 in words is "six hundred sixty-three thousand, three hundred seventy-six".