63446 has 4 divisors (see below), whose sum is σ = 95172. Its totient is φ = 31722.

The previous prime is 63443. The next prime is 63463. The reversal of 63446 is 64436.

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

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 as a sum of consecutive naturals, namely, 15860 + ... + 15863.

It is an arithmetic number, because the mean of its divisors is an integer number (23793).

2⁶³⁴⁴⁶ is an apocalyptic number.

63446 is a deficient number, since it is larger than the sum of its proper divisors (31726).

63446 is a wasteful number, since it uses less digits than its factorization.

63446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31725.

The product of its digits is 1728, while the sum is 23.

The square root of 63446 is about 251.8848943466. The cubic root of 63446 is about 39.8842486973.

Subtracting 63446 from its reverse (64436), we obtain a triangular number (990 = T₄₄).

The spelling of 63446 in words is "sixty-three thousand, four hundred forty-six".