63783 has 12 divisors (see below), whose sum is σ = 97240. Its totient is φ = 40176.

The previous prime is 63781. The next prime is 63793. The reversal of 63783 is 38736.

It is a happy number.

It is not a de Polignac number, because 63783 - 2¹ = 63781 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63781) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16 + ... + 357.

2⁶³⁷⁸³ is an apocalyptic number.

63783 is a deficient number, since it is larger than the sum of its proper divisors (33457).

63783 is a wasteful number, since it uses less digits than its factorization.

63783 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 398 (or 395 counting only the distinct ones).

The product of its digits is 3024, while the sum is 27.

The square root of 63783 is about 252.5529647421. The cubic root of 63783 is about 39.9547404754.

The spelling of 63783 in words is "sixty-three thousand, seven hundred eighty-three".