47281886 has 4 divisors (see below), whose sum is σ = 70922832. Its totient is φ = 23640942.

The previous prime is 47281867. The next prime is 47281889. The reversal of 47281886 is 68818274.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47281889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11820470 + ... + 11820473.

It is an arithmetic number, because the mean of its divisors is an integer number (17730708).

Almost surely, 2^47281886 is an apocalyptic number.

47281886 is a deficient number, since it is larger than the sum of its proper divisors (23640946).

47281886 is a wasteful number, since it uses less digits than its factorization.

47281886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23640945.

The product of its digits is 172032, while the sum is 44.

The square root of 47281886 is about 6876.1825164840. The cubic root of 47281886 is about 361.6026438757.

The spelling of 47281886 in words is "forty-seven million, two hundred eighty-one thousand, eight hundred eighty-six".