47970317 has 2 divisors, whose sum is σ = 47970318. Its totient is φ = 47970316.

The previous prime is 47970289. The next prime is 47970319. The reversal of 47970317 is 71307974.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 47969476 + 841 = 6926^2 + 29^2 .

It is a cyclic number.

It is not a de Polignac number, because 47970317 - 2¹⁴ = 47953933 is a prime.

Together with 47970319, 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 (47970319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23985158 + 23985159.

It is an arithmetic number, because the mean of its divisors is an integer number (23985159).

Almost surely, 2^47970317 is an apocalyptic number.

It is an amenable number.

47970317 is a deficient number, since it is larger than the sum of its proper divisors (1).

47970317 is an equidigital number, since it uses as much as digits as its factorization.

47970317 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 37044, while the sum is 38.

The square root of 47970317 is about 6926.0607129883. The cubic root of 47970317 is about 363.3491897989.

The spelling of 47970317 in words is "forty-seven million, nine hundred seventy thousand, three hundred seventeen".