47153849 has 2 divisors, whose sum is σ = 47153850. Its totient is φ = 47153848.

The previous prime is 47153837. The next prime is 47153857. The reversal of 47153849 is 94835174.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 47059600 + 94249 = 6860^2 + 307^2 .

It is a cyclic number.

It is not a de Polignac number, because 47153849 - 2⁴ = 47153833 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (47153809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23576924 + 23576925.

It is an arithmetic number, because the mean of its divisors is an integer number (23576925).

Almost surely, 2^47153849 is an apocalyptic number.

It is an amenable number.

47153849 is a deficient number, since it is larger than the sum of its proper divisors (1).

47153849 is an equidigital number, since it uses as much as digits as its factorization.

47153849 is an evil number, because the sum of its binary digits is even.

The product of its digits is 120960, while the sum is 41.

The square root of 47153849 is about 6866.8660246141. The cubic root of 47153849 is about 361.2759481367.

The spelling of 47153849 in words is "forty-seven million, one hundred fifty-three thousand, eight hundred forty-nine".