47127889 has 4 divisors (see below), whose sum is σ = 47311524. Its totient is φ = 46944256.

The previous prime is 47127853. The next prime is 47127907. The reversal of 47127889 is 98872174.

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

It can be written as a sum of positive squares in 2 ways, for example, as 22724289 + 24403600 = 4767^2 + 4940^2 .

It is a cyclic number.

It is not a de Polignac number, because 47127889 - 2²⁵ = 13573457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47127389) 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, 91432 + ... + 91945.

It is an arithmetic number, because the mean of its divisors is an integer number (11827881).

Almost surely, 2^47127889 is an apocalyptic number.

It is an amenable number.

47127889 is a deficient number, since it is larger than the sum of its proper divisors (183635).

47127889 is a wasteful number, since it uses less digits than its factorization.

47127889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183634.

The product of its digits is 225792, while the sum is 46.

The square root of 47127889 is about 6864.9755279972. The cubic root of 47127889 is about 361.2096372172.

The spelling of 47127889 in words is "forty-seven million, one hundred twenty-seven thousand, eight hundred eighty-nine".