63746 has 4 divisors (see below), whose sum is σ = 95622. Its totient is φ = 31872.

The previous prime is 63743. The next prime is 63761. The reversal of 63746 is 64736.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 60025 + 3721 = 245^2 + 61^2 .

It is an Ulam number.

It is a d-powerful number, because it can be written as 6² + 3⁵ + 7⁵ + 4 + 6⁶ .

It is a Curzon number.

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

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15935 + ... + 15938.

2⁶³⁷⁴⁶ is an apocalyptic number.

63746 is a deficient number, since it is larger than the sum of its proper divisors (31876).

63746 is a wasteful number, since it uses less digits than its factorization.

63746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31875.

The product of its digits is 3024, while the sum is 26.

The square root of 63746 is about 252.4797021545. The cubic root of 63746 is about 39.9470131742.

Subtracting 63746 from its reverse (64736), we obtain a triangular number (990 = T₄₄).

The spelling of 63746 in words is "sixty-three thousand, seven hundred forty-six".