49839117 has 8 divisors (see below), whose sum is σ = 66534720. Its totient is φ = 33184800.

The previous prime is 49839077. The next prime is 49839131. The reversal of 49839117 is 71193894.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 49839117 - 2¹⁸ = 49576973 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49839187) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7384 + ... + 12417.

It is an arithmetic number, because the mean of its divisors is an integer number (8316840).

Almost surely, 2^49839117 is an apocalyptic number.

It is an amenable number.

49839117 is a deficient number, since it is larger than the sum of its proper divisors (16695603).

49839117 is a wasteful number, since it uses less digits than its factorization.

49839117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20643.

The product of its digits is 54432, while the sum is 42.

The square root of 49839117 is about 7059.6824999429. The cubic root of 49839117 is about 368.0075932783.

The spelling of 49839117 in words is "forty-nine million, eight hundred thirty-nine thousand, one hundred seventeen".