47878679 has 4 divisors (see below), whose sum is σ = 47909976. Its totient is φ = 47847384.

The previous prime is 47878673. The next prime is 47878697. The reversal of 47878679 is 97687874.

47878679 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 47878679 - 2¹² = 47874583 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 (47878673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13229 + ... + 16454.

It is an arithmetic number, because the mean of its divisors is an integer number (11977494).

Almost surely, 2^47878679 is an apocalyptic number.

47878679 is a deficient number, since it is larger than the sum of its proper divisors (31297).

47878679 is a wasteful number, since it uses less digits than its factorization.

47878679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31296.

The product of its digits is 4741632, while the sum is 56.

The square root of 47878679 is about 6919.4421017883. The cubic root of 47878679 is about 363.1176728950.

The spelling of 47878679 in words is "forty-seven million, eight hundred seventy-eight thousand, six hundred seventy-nine".