49999686 has 32 divisors (see below), whose sum is σ = 115509888. Its totient is φ = 14259840.

The previous prime is 49999673. The next prime is 49999693. The reversal of 49999686 is 68699994.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 21160 + ... + 23403.

It is an arithmetic number, because the mean of its divisors is an integer number (3609684).

Almost surely, 2^49999686 is an apocalyptic number.

49999686 is an abundant number, since it is smaller than the sum of its proper divisors (65510202).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

49999686 is a wasteful number, since it uses less digits than its factorization.

49999686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44596.

The product of its digits is 7558272, while the sum is 60.

The square root of 49999686 is about 7071.0456086777. The cubic root of 49999686 is about 368.4023786718.

The spelling of 49999686 in words is "forty-nine million, nine hundred ninety-nine thousand, six hundred eighty-six".