49893143 has 4 divisors (see below), whose sum is σ = 49935888. Its totient is φ = 49850400.

The previous prime is 49893127. The next prime is 49893149. The reversal of 49893143 is 34139894.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34139894 = 2 ⋅17069947.

It is a cyclic number.

It is not a de Polignac number, because 49893143 - 2⁴ = 49893127 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 49893143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49893149) 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, 19571 + ... + 21972.

It is an arithmetic number, because the mean of its divisors is an integer number (12483972).

Almost surely, 2^49893143 is an apocalyptic number.

49893143 is a deficient number, since it is larger than the sum of its proper divisors (42745).

49893143 is a wasteful number, since it uses less digits than its factorization.

49893143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42744.

The product of its digits is 93312, while the sum is 41.

The square root of 49893143 is about 7063.5078395936. The cubic root of 49893143 is about 368.1405196467.

The spelling of 49893143 in words is "forty-nine million, eight hundred ninety-three thousand, one hundred forty-three".