63445 has 4 divisors (see below), whose sum is σ = 76140. Its totient is φ = 50752.

The previous prime is 63443. The next prime is 63463. The reversal of 63445 is 54436.

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

It can be written as a sum of positive squares in 2 ways, for example, as 14161 + 49284 = 119^2 + 222^2 .

It is a cyclic number.

It is not a de Polignac number, because 63445 - 2¹ = 63443 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6340 + ... + 6349.

It is an arithmetic number, because the mean of its divisors is an integer number (19035).

2⁶³⁴⁴⁵ is an apocalyptic number.

It is an amenable number.

63445 is a deficient number, since it is larger than the sum of its proper divisors (12695).

63445 is a wasteful number, since it uses less digits than its factorization.

63445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12694.

The product of its digits is 1440, while the sum is 22.

The square root of 63445 is about 251.8829093051. The cubic root of 63445 is about 39.8840391519.

Subtracting from 63445 its reverse (54436), we obtain a palindrome (9009).

The spelling of 63445 in words is "sixty-three thousand, four hundred forty-five".