47303891 has 2 divisors, whose sum is σ = 47303892. Its totient is φ = 47303890.

The previous prime is 47303881. The next prime is 47303903. The reversal of 47303891 is 19830374.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 47303891 - 2¹⁸ = 47041747 is a prime.

It is not a weakly prime, because it can be changed into another prime (47303881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23651945 + 23651946.

It is an arithmetic number, because the mean of its divisors is an integer number (23651946).

Almost surely, 2^47303891 is an apocalyptic number.

47303891 is a deficient number, since it is larger than the sum of its proper divisors (1).

47303891 is an equidigital number, since it uses as much as digits as its factorization.

47303891 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 47303891 is about 6877.7824187742. The cubic root of 47303891 is about 361.6587318251.

The spelling of 47303891 in words is "forty-seven million, three hundred three thousand, eight hundred ninety-one".