47839679 has 4 divisors (see below), whose sum is σ = 47865480. Its totient is φ = 47813880.

The previous prime is 47839657. The next prime is 47839697. The reversal of 47839679 is 97693874.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 47839679 - 2⁸ = 47839423 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 47839679.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47839639) 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 3 ways as a sum of consecutive naturals, for example, 9884 + ... + 13905.

It is an arithmetic number, because the mean of its divisors is an integer number (11966370).

Almost surely, 2^47839679 is an apocalyptic number.

47839679 is a deficient number, since it is larger than the sum of its proper divisors (25801).

47839679 is a wasteful number, since it uses less digits than its factorization.

47839679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25800.

The product of its digits is 2286144, while the sum is 53.

The square root of 47839679 is about 6916.6233813907. The cubic root of 47839679 is about 363.0190525457.

The spelling of 47839679 in words is "forty-seven million, eight hundred thirty-nine thousand, six hundred seventy-nine".