47421582 has 32 divisors (see below), whose sum is σ = 102453120. Its totient is φ = 14546400.
The previous prime is 47421581. The next prime is 47421589. The reversal of 47421582 is 28512474.
47421582 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (47421581) 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 15 ways as a sum of consecutive naturals, for example, 31957 + ... + 33407.
It is an arithmetic number, because the mean of its divisors is an integer number (3201660).
Almost surely, 247421582 is an apocalyptic number.
47421582 is an abundant number, since it is smaller than the sum of its proper divisors (55031538).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
47421582 is a wasteful number, since it uses less digits than its factorization.
47421582 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1888.
The product of its digits is 17920, while the sum is 33.
The square root of 47421582 is about 6886.3329864304. The cubic root of 47421582 is about 361.9584163135.
The spelling of 47421582 in words is "forty-seven million, four hundred twenty-one thousand, five hundred eighty-two".
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