49997871 has 32 divisors (see below), whose sum is σ = 92352000. Its totient is φ = 25971840.

The previous prime is 49997869. The next prime is 49997891. The reversal of 49997871 is 17879994.

It is not a de Polignac number, because 49997871 - 2¹ = 49997869 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49997821) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9946 + ... + 14103.

It is an arithmetic number, because the mean of its divisors is an integer number (2886000).

Almost surely, 2^49997871 is an apocalyptic number.

49997871 is a deficient number, since it is larger than the sum of its proper divisors (42354129).

49997871 is a wasteful number, since it uses less digits than its factorization.

49997871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24076 (or 24070 counting only the distinct ones).

The product of its digits is 1143072, while the sum is 54.

The square root of 49997871 is about 7070.9172672292. The cubic root of 49997871 is about 368.3979209211.

The spelling of 49997871 in words is "forty-nine million, nine hundred ninety-seven thousand, eight hundred seventy-one".