49887447 has 24 divisors (see below), whose sum is σ = 69909840. Its totient is φ = 31622400.

The previous prime is 49887443. The next prime is 49887449. The reversal of 49887447 is 74478894.

It is not a de Polignac number, because 49887447 - 2² = 49887443 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 49887447.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49887443) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 457629 + ... + 457737.

It is an arithmetic number, because the mean of its divisors is an integer number (2912910).

Almost surely, 2^49887447 is an apocalyptic number.

49887447 is a deficient number, since it is larger than the sum of its proper divisors (20022393).

49887447 is a wasteful number, since it uses less digits than its factorization.

49887447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275 (or 214 counting only the distinct ones).

The product of its digits is 1806336, while the sum is 51.

The square root of 49887447 is about 7063.1046289858. The cubic root of 49887447 is about 368.1265096507.

The spelling of 49887447 in words is "forty-nine million, eight hundred eighty-seven thousand, four hundred forty-seven".