49999943 has 6 divisors (see below), whose sum is σ = 58163256. Its totient is φ = 42857052.

The previous prime is 49999921. The next prime is 49999991. The reversal of 49999943 is 34999994.

It is a happy number.

It is not a de Polignac number, because 49999943 - 2¹⁰ = 49998919 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 (49999903) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 510155 + ... + 510252.

It is an arithmetic number, because the mean of its divisors is an integer number (9693876).

Almost surely, 2^49999943 is an apocalyptic number.

49999943 is a deficient number, since it is larger than the sum of its proper divisors (8163313).

49999943 is a wasteful number, since it uses less digits than its factorization.

49999943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1020421 (or 1020414 counting only the distinct ones).

The product of its digits is 2834352, while the sum is 56.

The square root of 49999943 is about 7071.0637813557. The cubic root of 49999943 is about 368.4030098708.

The spelling of 49999943 in words is "forty-nine million, nine hundred ninety-nine thousand, nine hundred forty-three".