63489343 has 4 divisors (see below), whose sum is σ = 63508320. Its totient is φ = 63470368.

The previous prime is 63489337. The next prime is 63489353. The reversal of 63489343 is 34398436.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-63489343 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 63489296 and 63489305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63489353) 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, 2983 + ... + 11656.

It is an arithmetic number, because the mean of its divisors is an integer number (15877080).

Almost surely, 2^63489343 is an apocalyptic number.

63489343 is a deficient number, since it is larger than the sum of its proper divisors (18977).

63489343 is a wasteful number, since it uses less digits than its factorization.

63489343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18976.

The product of its digits is 186624, while the sum is 40.

The square root of 63489343 is about 7968.0200175451. The cubic root of 63489343 is about 398.9332890983.

The spelling of 63489343 in words is "sixty-three million, four hundred eighty-nine thousand, three hundred forty-three".