49871903 has 4 divisors (see below), whose sum is σ = 52496760. Its totient is φ = 47247048.

The previous prime is 49871869. The next prime is 49871923. The reversal of 49871903 is 30917894.

It is a happy number.

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-49871903 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49871923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1312400 + ... + 1312437.

It is an arithmetic number, because the mean of its divisors is an integer number (13124190).

Almost surely, 2^49871903 is an apocalyptic number.

49871903 is a deficient number, since it is larger than the sum of its proper divisors (2624857).

49871903 is a wasteful number, since it uses less digits than its factorization.

49871903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2624856.

The product of its (nonzero) digits is 54432, while the sum is 41.

The square root of 49871903 is about 7062.0041772857. The cubic root of 49871903 is about 368.0882718893.

The spelling of 49871903 in words is "forty-nine million, eight hundred seventy-one thousand, nine hundred three".