63747 has 10 divisors (see below), whose sum is σ = 95348. Its totient is φ = 42444.

The previous prime is 63743. The next prime is 63761. The reversal of 63747 is 74736.

63747 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 63747 - 2² = 63743 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

63747 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 63747.

It is not an unprimeable number, because it can be changed into a prime (63743) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 313 + ... + 474.

2⁶³⁷⁴⁷ is an apocalyptic number.

63747 is a deficient number, since it is larger than the sum of its proper divisors (31601).

63747 is an equidigital number, since it uses as much as digits as its factorization.

63747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 799 (or 790 counting only the distinct ones).

The product of its digits is 3528, while the sum is 27.

The square root of 63747 is about 252.4816825039. The cubic root of 63747 is about 39.9472220595.

The spelling of 63747 in words is "sixty-three thousand, seven hundred forty-seven".