47343281 has 2 divisors, whose sum is σ = 47343282. Its totient is φ = 47343280.

The previous prime is 47343277. The next prime is 47343337. The reversal of 47343281 is 18234374.

47343281 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 35509681 + 11833600 = 5959^2 + 3440^2 .

It is a cyclic number.

It is not a de Polignac number, because 47343281 - 2² = 47343277 is a prime.

It is a super-2 number, since 2×47343281² = 4482772511689922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (47343211) 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 as a sum of consecutive naturals, namely, 23671640 + 23671641.

It is an arithmetic number, because the mean of its divisors is an integer number (23671641).

Almost surely, 2^47343281 is an apocalyptic number.

It is an amenable number.

47343281 is a deficient number, since it is larger than the sum of its proper divisors (1).

47343281 is an equidigital number, since it uses as much as digits as its factorization.

47343281 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16128, while the sum is 32.

The square root of 47343281 is about 6880.6453912406. The cubic root of 47343281 is about 361.7590885106.

The spelling of 47343281 in words is "forty-seven million, three hundred forty-three thousand, two hundred eighty-one".