47399047 has 2 divisors, whose sum is σ = 47399048. Its totient is φ = 47399046.

The previous prime is 47399041. The next prime is 47399057. The reversal of 47399047 is 74099374.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 47399047 - 2⁷ = 47398919 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 47398994 and 47399012.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47399041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23699523 + 23699524.

It is an arithmetic number, because the mean of its divisors is an integer number (23699524).

Almost surely, 2^47399047 is an apocalyptic number.

47399047 is a deficient number, since it is larger than the sum of its proper divisors (1).

47399047 is an equidigital number, since it uses as much as digits as its factorization.

47399047 is an odious number, because the sum of its binary digits is odd.

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

The square root of 47399047 is about 6884.6965800970. The cubic root of 47399047 is about 361.9010723437.

The spelling of 47399047 in words is "forty-seven million, three hundred ninety-nine thousand, forty-seven".