47695839 has 16 divisors (see below), whose sum is σ = 64948224. Its totient is φ = 31125600.

The previous prime is 47695819. The next prime is 47695841. The reversal of 47695839 is 93859674.

It is not a de Polignac number, because 47695839 - 2¹¹ = 47693791 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 47695791 and 47695800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47695819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47634 + ... + 48624.

It is an arithmetic number, because the mean of its divisors is an integer number (4059264).

Almost surely, 2^47695839 is an apocalyptic number.

47695839 is a deficient number, since it is larger than the sum of its proper divisors (17252385).

47695839 is a wasteful number, since it uses less digits than its factorization.

47695839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1318.

The product of its digits is 1632960, while the sum is 51.

The square root of 47695839 is about 6906.2174162127. The cubic root of 47695839 is about 362.6548563900.

The spelling of 47695839 in words is "forty-seven million, six hundred ninety-five thousand, eight hundred thirty-nine".