49873 has 4 divisors (see below), whose sum is σ = 50868. Its totient is φ = 48880.

The previous prime is 49871. The next prime is 49877. The reversal of 49873 is 37894.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 37894 = 2 ⋅18947.

It can be written as a sum of positive squares in 2 ways, for example, as 33489 + 16384 = 183^2 + 128^2 .

It is a cyclic number.

It is not a de Polignac number, because 49873 - 2¹ = 49871 is a prime.

It is a super-2 number, since 2×49873² = 4974632258, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 418 + ... + 523.

It is an arithmetic number, because the mean of its divisors is an integer number (12717).

2⁴⁹⁸⁷³ is an apocalyptic number.

It is an amenable number.

49873 is a deficient number, since it is larger than the sum of its proper divisors (995).

49873 is an equidigital number, since it uses as much as digits as its factorization.

49873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 994.

The product of its digits is 6048, while the sum is 31.

The square root of 49873 is about 223.3226365598. The cubic root of 49873 is about 36.8090970736.

The spelling of 49873 in words is "forty-nine thousand, eight hundred seventy-three".