47089121 has 2 divisors, whose sum is σ = 47089122. Its totient is φ = 47089120.

The previous prime is 47089109. The next prime is 47089153. The reversal of 47089121 is 12198074.

47089121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (47089153) can be obtained adding 47089121 to its sum of digits (32).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 45427600 + 1661521 = 6740^2 + 1289^2 .

It is a cyclic number.

It is not a de Polignac number, because 47089121 - 2⁶ = 47089057 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (47089321) 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, 23544560 + 23544561.

It is an arithmetic number, because the mean of its divisors is an integer number (23544561).

Almost surely, 2^47089121 is an apocalyptic number.

It is an amenable number.

47089121 is a deficient number, since it is larger than the sum of its proper divisors (1).

47089121 is an equidigital number, since it uses as much as digits as its factorization.

47089121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4032, while the sum is 32.

The square root of 47089121 is about 6862.1513390481. The cubic root of 47089121 is about 361.1105648346.

It can be divided in two parts, 47089 and 121, that multiplied together give a square (5697769 = 2387²).

The spelling of 47089121 in words is "forty-seven million, eighty-nine thousand, one hundred twenty-one".