47797889 has 2 divisors, whose sum is σ = 47797890. Its totient is φ = 47797888.

The previous prime is 47797879. The next prime is 47797921. The reversal of 47797889 is 98879774.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 33547264 + 14250625 = 5792^2 + 3775^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47797889 is a prime.

It is not a weakly prime, because it can be changed into another prime (47797879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23898944 + 23898945.

It is an arithmetic number, because the mean of its divisors is an integer number (23898945).

Almost surely, 2^47797889 is an apocalyptic number.

It is an amenable number.

47797889 is a deficient number, since it is larger than the sum of its proper divisors (1).

47797889 is an equidigital number, since it uses as much as digits as its factorization.

47797889 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7112448, while the sum is 59.

The square root of 47797889 is about 6913.6017386020. The cubic root of 47797889 is about 362.9133175433.

The spelling of 47797889 in words is "forty-seven million, seven hundred ninety-seven thousand, eight hundred eighty-nine".