47927491 has 2 divisors, whose sum is σ = 47927492. Its totient is φ = 47927490.

The previous prime is 47927449. The next prime is 47927501. The reversal of 47927491 is 19472974.

47927491 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 47927491 - 2⁹ = 47926979 is a prime.

It is not a weakly prime, because it can be changed into another prime (47927431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23963745 + 23963746.

It is an arithmetic number, because the mean of its divisors is an integer number (23963746).

Almost surely, 2^47927491 is an apocalyptic number.

47927491 is a deficient number, since it is larger than the sum of its proper divisors (1).

47927491 is an equidigital number, since it uses as much as digits as its factorization.

47927491 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 127008, while the sum is 43.

The square root of 47927491 is about 6922.9683662429. The cubic root of 47927491 is about 363.2410296813.

The spelling of 47927491 in words is "forty-seven million, nine hundred twenty-seven thousand, four hundred ninety-one".