47969 has 2 divisors, whose sum is σ = 47970. Its totient is φ = 47968.
The previous prime is 47963. The next prime is 47977. The reversal of 47969 is 96974.
It is a happy number.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 44944 + 3025 = 212^2 + 55^2 .
It is a cyclic number.
It is not a de Polignac number, because 47969 - 28 = 47713 is a prime.
It is a super-2 number, since 2×479692 = 4602049922, which contains 22 as substring.
It is a plaindrome in base 13.
It is a nialpdrome in base 16.
It is not a weakly prime, because it can be changed into another prime (47963) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23984 + 23985.
It is an arithmetic number, because the mean of its divisors is an integer number (23985).
247969 is an apocalyptic number.
It is an amenable number.
47969 is a deficient number, since it is larger than the sum of its proper divisors (1).
47969 is an equidigital number, since it uses as much as digits as its factorization.
47969 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 13608, while the sum is 35.
The square root of 47969 is about 219.0182640786. The cubic root of 47969 is about 36.3345864581.
The spelling of 47969 in words is "forty-seven thousand, nine hundred sixty-nine".
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