63745 has 16 divisors (see below), whose sum is σ = 89280. Its totient is φ = 43200.

The previous prime is 63743. The next prime is 63761. The reversal of 63745 is 54736.

It is not a de Polignac number, because 63745 - 2¹ = 63743 is a prime.

It is a congruent 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 in 15 ways as a sum of consecutive naturals, for example, 1015 + ... + 1075.

It is an arithmetic number, because the mean of its divisors is an integer number (5580).

It is a Proth number, since it is equal to 249 ⋅ 2⁸ + 1 and 249 < 2⁸.

2⁶³⁷⁴⁵ is an apocalyptic number.

It is an amenable number.

63745 is a deficient number, since it is larger than the sum of its proper divisors (25535).

63745 is a wasteful number, since it uses less digits than its factorization.

63745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96.

The product of its digits is 2520, while the sum is 25.

The square root of 63745 is about 252.4777217895. The cubic root of 63745 is about 39.9468042868.

Subtracting from 63745 its reverse (54736), we obtain a palindrome (9009).

It can be divided in two parts, 63 and 745, that added together give a palindrome (808).

The spelling of 63745 in words is "sixty-three thousand, seven hundred forty-five".