47878107 has 12 divisors (see below), whose sum is σ = 64916280. Its totient is φ = 31388160.

The previous prime is 47878099. The next prime is 47878121. The reversal of 47878107 is 70187874.

It is not a de Polignac number, because 47878107 - 2³ = 47878099 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (47878807) 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, 9019 + ... + 13307.

It is an arithmetic number, because the mean of its divisors is an integer number (5409690).

Almost surely, 2^47878107 is an apocalyptic number.

47878107 is a deficient number, since it is larger than the sum of its proper divisors (17038173).

47878107 is an equidigital number, since it uses as much as digits as its factorization.

47878107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4414 (or 4353 counting only the distinct ones).

The product of its (nonzero) digits is 87808, while the sum is 42.

The square root of 47878107 is about 6919.4007688527. The cubic root of 47878107 is about 363.1162268502.

The spelling of 47878107 in words is "forty-seven million, eight hundred seventy-eight thousand, one hundred seven".