47479687 has 2 divisors, whose sum is σ = 47479688. Its totient is φ = 47479686.

The previous prime is 47479669. The next prime is 47479709. The reversal of 47479687 is 78697474.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 47479687 - 2¹⁹ = 46955399 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47479667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23739843 + 23739844.

It is an arithmetic number, because the mean of its divisors is an integer number (23739844).

Almost surely, 2^47479687 is an apocalyptic number.

47479687 is a deficient number, since it is larger than the sum of its proper divisors (1).

47479687 is an equidigital number, since it uses as much as digits as its factorization.

47479687 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2370816, while the sum is 52.

The square root of 47479687 is about 6890.5505585548. The cubic root of 47479687 is about 362.1061901669.

The spelling of 47479687 in words is "forty-seven million, four hundred seventy-nine thousand, six hundred eighty-seven".