49749686 has 16 divisors (see below), whose sum is σ = 85414560. Its totient is φ = 21288960.

The previous prime is 49749677. The next prime is 49749751. The reversal of 49749686 is 68694794.

It is a happy 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 7 ways as a sum of consecutive naturals, for example, 8456 + ... + 13076.

It is an arithmetic number, because the mean of its divisors is an integer number (5338410).

Almost surely, 2^49749686 is an apocalyptic number.

49749686 is a deficient number, since it is larger than the sum of its proper divisors (35664874).

49749686 is a wasteful number, since it uses less digits than its factorization.

49749686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5399.

The product of its digits is 2612736, while the sum is 53.

The square root of 49749686 is about 7053.3457309280. The cubic root of 49749686 is about 367.7873446464.

The spelling of 49749686 in words is "forty-nine million, seven hundred forty-nine thousand, six hundred eighty-six".