47878833 has 4 divisors (see below), whose sum is σ = 63838448. Its totient is φ = 31919220.

The previous prime is 47878813. The next prime is 47878867. The reversal of 47878833 is 33887874.

47878833 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 47878833 - 2²⁴ = 31101617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47878813) 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, 7979803 + ... + 7979808.

It is an arithmetic number, because the mean of its divisors is an integer number (15959612).

Almost surely, 2^47878833 is an apocalyptic number.

It is an amenable number.

47878833 is a deficient number, since it is larger than the sum of its proper divisors (15959615).

47878833 is a wasteful number, since it uses less digits than its factorization.

47878833 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15959614.

The product of its digits is 903168, while the sum is 48.

The square root of 47878833 is about 6919.4532298441. The cubic root of 47878833 is about 363.1180622127.

The spelling of 47878833 in words is "forty-seven million, eight hundred seventy-eight thousand, eight hundred thirty-three".