47908247 has 2 divisors, whose sum is σ = 47908248. Its totient is φ = 47908246.

The previous prime is 47908219. The next prime is 47908249. The reversal of 47908247 is 74280974.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 47908247 - 2⁸ = 47907991 is a prime.

It is a super-2 number, since 2×47908247² = 4590400261226018, which contains 22 as substring.

Together with 47908249, 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 (47908249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23954123 + 23954124.

It is an arithmetic number, because the mean of its divisors is an integer number (23954124).

Almost surely, 2^47908247 is an apocalyptic number.

47908247 is a deficient number, since it is larger than the sum of its proper divisors (1).

47908247 is an equidigital number, since it uses as much as digits as its factorization.

47908247 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 112896, while the sum is 41.

The square root of 47908247 is about 6921.5783604609. The cubic root of 47908247 is about 363.1924066049.

The spelling of 47908247 in words is "forty-seven million, nine hundred eight thousand, two hundred forty-seven".