49943817 has 32 divisors (see below), whose sum is σ = 92252160. Its totient is φ = 25943760.

The previous prime is 49943809. The next prime is 49943819. The reversal of 49943817 is 71834994.

It is not a de Polignac number, because 49943817 - 2³ = 49943809 is a prime.

It is not an unprimeable number, because it can be changed into a prime (49943819) 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, 9933 + ... + 14090.

It is an arithmetic number, because the mean of its divisors is an integer number (2882880).

Almost surely, 2^49943817 is an apocalyptic number.

It is an amenable number.

49943817 is a deficient number, since it is larger than the sum of its proper divisors (42308343).

49943817 is a wasteful number, since it uses less digits than its factorization.

49943817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24050 (or 24044 counting only the distinct ones).

The product of its digits is 217728, while the sum is 45.

The square root of 49943817 is about 7067.0939572076. The cubic root of 49943817 is about 368.2651115206.

The spelling of 49943817 in words is "forty-nine million, nine hundred forty-three thousand, eight hundred seventeen".