47931107 has 4 divisors (see below), whose sum is σ = 54778416. Its totient is φ = 41083800.

The previous prime is 47931101. The next prime is 47931127. The reversal of 47931107 is 70113974.

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 47931107 - 2⁶ = 47931043 is a prime.

It is not an unprimeable number, because it can be changed into a prime (47931101) 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 3 ways as a sum of consecutive naturals, for example, 3423644 + ... + 3423657.

It is an arithmetic number, because the mean of its divisors is an integer number (13694604).

Almost surely, 2^47931107 is an apocalyptic number.

47931107 is a deficient number, since it is larger than the sum of its proper divisors (6847309).

47931107 is an equidigital number, since it uses as much as digits as its factorization.

47931107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6847308.

The product of its (nonzero) digits is 5292, while the sum is 32.

The square root of 47931107 is about 6923.2295209678. The cubic root of 47931107 is about 363.2501646370.

The spelling of 47931107 in words is "forty-seven million, nine hundred thirty-one thousand, one hundred seven".