49984439 has 4 divisors (see below), whose sum is σ = 50291256. Its totient is φ = 49677624.

The previous prime is 49984433. The next prime is 49984463. The reversal of 49984439 is 93448994.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49984439 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 (49984433) 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, 153164 + ... + 153489.

It is an arithmetic number, because the mean of its divisors is an integer number (12572814).

Almost surely, 2^49984439 is an apocalyptic number.

49984439 is a deficient number, since it is larger than the sum of its proper divisors (306817).

49984439 is a wasteful number, since it uses less digits than its factorization.

49984439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306816.

The product of its digits is 1119744, while the sum is 50.

The square root of 49984439 is about 7069.9673973789. The cubic root of 49984439 is about 368.3649277558.

The spelling of 49984439 in words is "forty-nine million, nine hundred eighty-four thousand, four hundred thirty-nine".