47393897 has 2 divisors, whose sum is σ = 47393898. Its totient is φ = 47393896.

The previous prime is 47393893. The next prime is 47393911. The reversal of 47393897 is 79839374.

47393897 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., 46022656 + 1371241 = 6784^2 + 1171^2 .

It is a cyclic number.

It is not a de Polignac number, because 47393897 - 2² = 47393893 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (47393893) 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, 23696948 + 23696949.

It is an arithmetic number, because the mean of its divisors is an integer number (23696949).

Almost surely, 2^47393897 is an apocalyptic number.

It is an amenable number.

47393897 is a deficient number, since it is larger than the sum of its proper divisors (1).

47393897 is an equidigital number, since it uses as much as digits as its factorization.

47393897 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1143072, while the sum is 50.

The square root of 47393897 is about 6884.3225520018. The cubic root of 47393897 is about 361.8879647804.

The spelling of 47393897 in words is "forty-seven million, three hundred ninety-three thousand, eight hundred ninety-seven".