47927189 has 2 divisors, whose sum is σ = 47927190. Its totient is φ = 47927188.

The previous prime is 47927183. The next prime is 47927213. The reversal of 47927189 is 98172974.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 33258289 + 14668900 = 5767^2 + 3830^2 .

It is a cyclic number.

It is not a de Polignac number, because 47927189 - 2⁸ = 47926933 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47927183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23963594 + 23963595.

It is an arithmetic number, because the mean of its divisors is an integer number (23963595).

Almost surely, 2^47927189 is an apocalyptic number.

It is an amenable number.

47927189 is a deficient number, since it is larger than the sum of its proper divisors (1).

47927189 is an equidigital number, since it uses as much as digits as its factorization.

47927189 is an evil number, because the sum of its binary digits is even.

The product of its digits is 254016, while the sum is 47.

The square root of 47927189 is about 6922.9465547554. The cubic root of 47927189 is about 363.2402667300.

The spelling of 47927189 in words is "forty-seven million, nine hundred twenty-seven thousand, one hundred eighty-nine".