47097481 has 2 divisors, whose sum is σ = 47097482. Its totient is φ = 47097480.

The previous prime is 47097473. The next prime is 47097487. The reversal of 47097481 is 18479074.

47097481 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., 30969225 + 16128256 = 5565^2 + 4016^2 .

It is a cyclic number.

It is not a de Polignac number, because 47097481 - 2³ = 47097473 is a prime.

It is a super-2 number, since 2×47097481² = 4436345433090722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (47097487) 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, 23548740 + 23548741.

It is an arithmetic number, because the mean of its divisors is an integer number (23548741).

Almost surely, 2^47097481 is an apocalyptic number.

It is an amenable number.

47097481 is a deficient number, since it is larger than the sum of its proper divisors (1).

47097481 is an equidigital number, since it uses as much as digits as its factorization.

47097481 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 56448, while the sum is 40.

The square root of 47097481 is about 6862.7604504310. The cubic root of 47097481 is about 361.1319335756.

The spelling of 47097481 in words is "forty-seven million, ninety-seven thousand, four hundred eighty-one".