47331887 has 4 divisors (see below), whose sum is σ = 47414496. Its totient is φ = 47249280.

The previous prime is 47331883. The next prime is 47331923. The reversal of 47331887 is 78813374.

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

It is a cyclic number.

It is not a de Polignac number, because 47331887 - 2² = 47331883 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 (47331881) 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, 40439 + ... + 41592.

It is an arithmetic number, because the mean of its divisors is an integer number (11853624).

Almost surely, 2^47331887 is an apocalyptic number.

47331887 is a deficient number, since it is larger than the sum of its proper divisors (82609).

47331887 is an equidigital number, since it uses as much as digits as its factorization.

47331887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82608.

The product of its digits is 112896, while the sum is 41.

The square root of 47331887 is about 6879.8173667620. The cubic root of 47331887 is about 361.7300649358.

The spelling of 47331887 in words is "forty-seven million, three hundred thirty-one thousand, eight hundred eighty-seven".