47312 has 10 divisors (see below), whose sum is σ = 91698. Its totient is φ = 23648.
The previous prime is 47309. The next prime is 47317. The reversal of 47312 is 21374.
It is a happy number.
It can be written as a sum of positive squares in only one way, i.e., 33856 + 13456 = 184^2 + 116^2 .
It is a plaindrome in base 12 and base 14.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (47317) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (7) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1463 + ... + 1494.
247312 is an apocalyptic number.
It is an amenable number.
47312 is a deficient number, since it is larger than the sum of its proper divisors (44386).
47312 is a wasteful number, since it uses less digits than its factorization.
47312 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2965 (or 2959 counting only the distinct ones).
The product of its digits is 168, while the sum is 17.
The square root of 47312 is about 217.5132179892. The cubic root of 47312 is about 36.1679396250.
Adding to 47312 its reverse (21374), we get a palindrome (68686).
The spelling of 47312 in words is "forty-seven thousand, three hundred twelve", and thus it is an iban number.
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