47909347 has 2 divisors, whose sum is σ = 47909348. Its totient is φ = 47909346.

The previous prime is 47909327. The next prime is 47909359. The reversal of 47909347 is 74390974.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47909347 is a prime.

It is not a weakly prime, because it can be changed into another prime (47909327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23954673 + 23954674.

It is an arithmetic number, because the mean of its divisors is an integer number (23954674).

Almost surely, 2^47909347 is an apocalyptic number.

47909347 is a deficient number, since it is larger than the sum of its proper divisors (1).

47909347 is an equidigital number, since it uses as much as digits as its factorization.

47909347 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 190512, while the sum is 43.

The square root of 47909347 is about 6921.6578216494. The cubic root of 47909347 is about 363.1951862835.

The spelling of 47909347 in words is "forty-seven million, nine hundred nine thousand, three hundred forty-seven".