47327581 has 12 divisors (see below), whose sum is σ = 55166880. Its totient is φ = 40483800.

The previous prime is 47327519. The next prime is 47327587. The reversal of 47327581 is 18572374.

47327581 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 47327581 - 2²³ = 38938973 is a prime.

It is a super-2 number, since 2×47327581² = 4479799846623122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 47327581.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47327587) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 44506 + ... + 45556.

It is an arithmetic number, because the mean of its divisors is an integer number (4597240).

Almost surely, 2^47327581 is an apocalyptic number.

It is an amenable number.

47327581 is a deficient number, since it is larger than the sum of its proper divisors (7839299).

47327581 is a wasteful number, since it uses less digits than its factorization.

47327581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1984 (or 1977 counting only the distinct ones).

The product of its digits is 47040, while the sum is 37.

The square root of 47327581 is about 6879.5044152904. The cubic root of 47327581 is about 361.7190951859.

The spelling of 47327581 in words is "forty-seven million, three hundred twenty-seven thousand, five hundred eighty-one".