47168257 has 2 divisors, whose sum is σ = 47168258. Its totient is φ = 47168256.

The previous prime is 47168249. The next prime is 47168263. The reversal of 47168257 is 75286174.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27133681 + 20034576 = 5209^2 + 4476^2 .

It is a cyclic number.

It is not a de Polignac number, because 47168257 - 2³ = 47168249 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (47168207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23584128 + 23584129.

It is an arithmetic number, because the mean of its divisors is an integer number (23584129).

Almost surely, 2^47168257 is an apocalyptic number.

It is an amenable number.

47168257 is a deficient number, since it is larger than the sum of its proper divisors (1).

47168257 is an equidigital number, since it uses as much as digits as its factorization.

47168257 is an evil number, because the sum of its binary digits is even.

The product of its digits is 94080, while the sum is 40.

The square root of 47168257 is about 6867.9150402433. The cubic root of 47168257 is about 361.3127407062.

The spelling of 47168257 in words is "forty-seven million, one hundred sixty-eight thousand, two hundred fifty-seven".