63946 has 4 divisors (see below), whose sum is σ = 95922. Its totient is φ = 31972.

The previous prime is 63929. The next prime is 63949. The reversal of 63946 is 64936.

63946 is nontrivially palindromic in base 15.

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., 38025 + 25921 = 195^2 + 161^2 .

It is an Ulam number.

It is a d-powerful number, because it can be written as 6² + 3¹⁰ + 9³ + 4⁶ + 6² .

It is not an unprimeable number, because it can be changed into a prime (63949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15985 + ... + 15988.

2⁶³⁹⁴⁶ is an apocalyptic number.

63946 is a deficient number, since it is larger than the sum of its proper divisors (31976).

63946 is a wasteful number, since it uses less digits than its factorization.

63946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31975.

The product of its digits is 3888, while the sum is 28.

The square root of 63946 is about 252.8754634202. The cubic root of 63946 is about 39.9887468345.

Subtracting 63946 from its reverse (64936), we obtain a triangular number (990 = T₄₄).

It can be divided in two parts, 6394 and 6, that added together give a square (6400 = 80²).

The spelling of 63946 in words is "sixty-three thousand, nine hundred forty-six".