47838889 has 16 divisors (see below), whose sum is σ = 55617408. Its totient is φ = 40303872.

The previous prime is 47838887. The next prime is 47838937. The reversal of 47838889 is 98883874.

It is not a de Polignac number, because 47838889 - 2¹ = 47838887 is a prime.

It is not an unprimeable number, because it can be changed into a prime (47838883) 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, 155674 + ... + 155980.

It is an arithmetic number, because the mean of its divisors is an integer number (3476088).

Almost surely, 2^47838889 is an apocalyptic number.

It is an amenable number.

47838889 is a deficient number, since it is larger than the sum of its proper divisors (7778519).

47838889 is a wasteful number, since it uses less digits than its factorization.

47838889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 624.

The product of its digits is 3096576, while the sum is 55.

The square root of 47838889 is about 6916.5662723638. The cubic root of 47838889 is about 363.0170542977.

The spelling of 47838889 in words is "forty-seven million, eight hundred thirty-eight thousand, eight hundred eighty-nine".