47708387 has 2 divisors, whose sum is σ = 47708388. Its totient is φ = 47708386.

The previous prime is 47708369. The next prime is 47708389. The reversal of 47708387 is 78380774.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 47708387 - 2⁸ = 47708131 is a prime.

Together with 47708389, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (47708389) 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, 23854193 + 23854194.

It is an arithmetic number, because the mean of its divisors is an integer number (23854194).

Almost surely, 2^47708387 is an apocalyptic number.

47708387 is a deficient number, since it is larger than the sum of its proper divisors (1).

47708387 is an equidigital number, since it uses as much as digits as its factorization.

47708387 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 263424, while the sum is 44.

The square root of 47708387 is about 6907.1258132453. The cubic root of 47708387 is about 362.6866564675.

The spelling of 47708387 in words is "forty-seven million, seven hundred eight thousand, three hundred eighty-seven".