49838109 has 4 divisors (see below), whose sum is σ = 66450816. Its totient is φ = 33225404.

The previous prime is 49838071. The next prime is 49838137. The reversal of 49838109 is 90183894.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 49838109 - 2¹² = 49834013 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49838209) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8306349 + ... + 8306354.

It is an arithmetic number, because the mean of its divisors is an integer number (16612704).

Almost surely, 2^49838109 is an apocalyptic number.

It is an amenable number.

49838109 is a deficient number, since it is larger than the sum of its proper divisors (16612707).

49838109 is a wasteful number, since it uses less digits than its factorization.

49838109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16612706.

The product of its (nonzero) digits is 62208, while the sum is 42.

The square root of 49838109 is about 7059.6111082693. The cubic root of 49838109 is about 368.0051122675.

The spelling of 49838109 in words is "forty-nine million, eight hundred thirty-eight thousand, one hundred nine".