47948279 has 12 divisors (see below), whose sum is σ = 51214968. Its totient is φ = 44880000.

The previous prime is 47948269. The next prime is 47948287. The reversal of 47948279 is 97284974.

It is a de Polignac number, because none of the positive numbers 2^k-47948279 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47948209) 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 in 11 ways as a sum of consecutive naturals, for example, 72209 + ... + 72869.

It is an arithmetic number, because the mean of its divisors is an integer number (4267914).

Almost surely, 2^47948279 is an apocalyptic number.

47948279 is a deficient number, since it is larger than the sum of its proper divisors (3266689).

47948279 is a wasteful number, since it uses less digits than its factorization.

47948279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 946 (or 929 counting only the distinct ones).

The product of its digits is 1016064, while the sum is 50.

The square root of 47948279 is about 6924.4695825745. The cubic root of 47948279 is about 363.2935393015.

The spelling of 47948279 in words is "forty-seven million, nine hundred forty-eight thousand, two hundred seventy-nine".