49643 has 4 divisors (see below), whose sum is σ = 54168. Its totient is φ = 45120.

The previous prime is 49639. The next prime is 49663. The reversal of 49643 is 34694.

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

It is a cyclic number.

It is not a de Polignac number, because 49643 - 2² = 49639 is a prime.

It is a Duffinian number.

It is a plaindrome in base 12.

It is a nialpdrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (49603) 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, 2246 + ... + 2267.

It is an arithmetic number, because the mean of its divisors is an integer number (13542).

2⁴⁹⁶⁴³ is an apocalyptic number.

49643 is a deficient number, since it is larger than the sum of its proper divisors (4525).

49643 is a wasteful number, since it uses less digits than its factorization.

49643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4524.

The product of its digits is 2592, while the sum is 26.

The square root of 49643 is about 222.8070914491. The cubic root of 49643 is about 36.7524255267.

The spelling of 49643 in words is "forty-nine thousand, six hundred forty-three".