47058821 has 2 divisors, whose sum is σ = 47058822. Its totient is φ = 47058820.

The previous prime is 47058787. The next prime is 47058833. The reversal of 47058821 is 12885074.

47058821 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 44702596 + 2356225 = 6686^2 + 1535^2 .

It is a cyclic number.

It is not a de Polignac number, because 47058821 - 2⁶ = 47058757 is a prime.

It is a Chen prime.

It is a nialpdrome in base 13.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47058841) 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, 23529410 + 23529411.

It is an arithmetic number, because the mean of its divisors is an integer number (23529411).

Almost surely, 2^47058821 is an apocalyptic number.

It is an amenable number.

47058821 is a deficient number, since it is larger than the sum of its proper divisors (1).

47058821 is an equidigital number, since it uses as much as digits as its factorization.

47058821 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17920, while the sum is 35.

The square root of 47058821 is about 6859.9432213394. The cubic root of 47058821 is about 361.0330947271.

The spelling of 47058821 in words is "forty-seven million, fifty-eight thousand, eight hundred twenty-one".