49645839 has 8 divisors (see below), whose sum is σ = 66228400. Its totient is φ = 33080256.

The previous prime is 49645837. The next prime is 49645847. The reversal of 49645839 is 93854694.

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

It is not a de Polignac number, because 49645839 - 2¹ = 49645837 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 (49645837) 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, 6387 + ... + 11835.

It is an arithmetic number, because the mean of its divisors is an integer number (8278550).

Almost surely, 2^49645839 is an apocalyptic number.

49645839 is a deficient number, since it is larger than the sum of its proper divisors (16582561).

49645839 is a wasteful number, since it uses less digits than its factorization.

49645839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8489.

The product of its digits is 933120, while the sum is 48.

The square root of 49645839 is about 7045.9803434299. The cubic root of 49645839 is about 367.5312611660.

The spelling of 49645839 in words is "forty-nine million, six hundred forty-five thousand, eight hundred thirty-nine".