47996647 has 2 divisors, whose sum is σ = 47996648. Its totient is φ = 47996646.

The previous prime is 47996633. The next prime is 47996651. The reversal of 47996647 is 74669974.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 47996647 - 2⁷ = 47996519 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 47996594 and 47996603.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47996617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23998323 + 23998324.

It is an arithmetic number, because the mean of its divisors is an integer number (23998324).

Almost surely, 2^47996647 is an apocalyptic number.

47996647 is a deficient number, since it is larger than the sum of its proper divisors (1).

47996647 is an equidigital number, since it uses as much as digits as its factorization.

47996647 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2286144, while the sum is 52.

The square root of 47996647 is about 6927.9612441179. The cubic root of 47996647 is about 363.4156561397.

The spelling of 47996647 in words is "forty-seven million, nine hundred ninety-six thousand, six hundred forty-seven".