47109879 has 6 divisors (see below), whose sum is σ = 68047616. Its totient is φ = 31406580.

The previous prime is 47109859. The next prime is 47109883. The reversal of 47109879 is 97890174.

It is not a de Polignac number, because 47109879 - 2¹² = 47105783 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 (47109859) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2617207 + ... + 2617224.

Almost surely, 2^47109879 is an apocalyptic number.

47109879 is a deficient number, since it is larger than the sum of its proper divisors (20937737).

47109879 is a wasteful number, since it uses less digits than its factorization.

47109879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5234437 (or 5234434 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 45.

The square root of 47109879 is about 6863.6636718301. The cubic root of 47109879 is about 361.1636190699.

The spelling of 47109879 in words is "forty-seven million, one hundred nine thousand, eight hundred seventy-nine".