49870839 has 16 divisors (see below), whose sum is σ = 70188800. Its totient is φ = 31409856.

The previous prime is 49870829. The next prime is 49870859. The reversal of 49870839 is 93807894.

It is not a de Polignac number, because 49870839 - 2¹⁵ = 49838071 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 (49870819) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24027 + ... + 26019.

It is an arithmetic number, because the mean of its divisors is an integer number (4386800).

Almost surely, 2^49870839 is an apocalyptic number.

49870839 is a deficient number, since it is larger than the sum of its proper divisors (20317961).

49870839 is a wasteful number, since it uses less digits than its factorization.

49870839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2454.

The product of its (nonzero) digits is 435456, while the sum is 48.

The square root of 49870839 is about 7061.9288441615. The cubic root of 49870839 is about 368.0856541916.

The spelling of 49870839 in words is "forty-nine million, eight hundred seventy thousand, eight hundred thirty-nine".