47018357 has 2 divisors, whose sum is σ = 47018358. Its totient is φ = 47018356.

The previous prime is 47018347. The next prime is 47018359. The reversal of 47018357 is 75381074.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29495761 + 17522596 = 5431^2 + 4186^2 .

It is a cyclic number.

It is not a de Polignac number, because 47018357 - 2⁴ = 47018341 is a prime.

Together with 47018359, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47018359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23509178 + 23509179.

It is an arithmetic number, because the mean of its divisors is an integer number (23509179).

Almost surely, 2^47018357 is an apocalyptic number.

It is an amenable number.

47018357 is a deficient number, since it is larger than the sum of its proper divisors (1).

47018357 is an equidigital number, since it uses as much as digits as its factorization.

47018357 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23520, while the sum is 35.

The square root of 47018357 is about 6856.9932915236. The cubic root of 47018357 is about 360.9295857425.

The spelling of 47018357 in words is "forty-seven million, eighteen thousand, three hundred fifty-seven".