47175649 has 2 divisors, whose sum is σ = 47175650. Its totient is φ = 47175648.

The previous prime is 47175641. The next prime is 47175749. The reversal of 47175649 is 94657174.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 36000000 + 11175649 = 6000^2 + 3343^2 .

It is a cyclic number.

It is not a de Polignac number, because 47175649 - 2³ = 47175641 is a prime.

It is not a weakly prime, because it can be changed into another prime (47175641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23587824 + 23587825.

It is an arithmetic number, because the mean of its divisors is an integer number (23587825).

Almost surely, 2^47175649 is an apocalyptic number.

It is an amenable number.

47175649 is a deficient number, since it is larger than the sum of its proper divisors (1).

47175649 is an equidigital number, since it uses as much as digits as its factorization.

47175649 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 211680, while the sum is 43.

The square root of 47175649 is about 6868.4531737503. The cubic root of 47175649 is about 361.3316141636.

The spelling of 47175649 in words is "forty-seven million, one hundred seventy-five thousand, six hundred forty-nine".