49869871 has 2 divisors, whose sum is σ = 49869872. Its totient is φ = 49869870.

The previous prime is 49869863. The next prime is 49869887. The reversal of 49869871 is 17896894.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 49869871 - 2³ = 49869863 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49869371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24934935 + 24934936.

It is an arithmetic number, because the mean of its divisors is an integer number (24934936).

Almost surely, 2^49869871 is an apocalyptic number.

49869871 is a deficient number, since it is larger than the sum of its proper divisors (1).

49869871 is an equidigital number, since it uses as much as digits as its factorization.

49869871 is an evil number, because the sum of its binary digits is even.

The product of its digits is 870912, while the sum is 52.

The square root of 49869871 is about 7061.8603073128. The cubic root of 49869871 is about 368.0832726447.

The spelling of 49869871 in words is "forty-nine million, eight hundred sixty-nine thousand, eight hundred seventy-one".