47921165 has 8 divisors (see below), whose sum is σ = 57694560. Its totient is φ = 38210832.

The previous prime is 47921149. The next prime is 47921177. The reversal of 47921165 is 56112974.

47921165 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 47921165 - 2⁴ = 47921149 is a prime.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 14075 + ... + 17144.

It is an arithmetic number, because the mean of its divisors is an integer number (7211820).

Almost surely, 2^47921165 is an apocalyptic number.

It is an amenable number.

47921165 is a deficient number, since it is larger than the sum of its proper divisors (9773395).

47921165 is a wasteful number, since it uses less digits than its factorization.

47921165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31531.

The product of its digits is 15120, while the sum is 35.

The square root of 47921165 is about 6922.5114662238. The cubic root of 47921165 is about 363.2250474561.

The spelling of 47921165 in words is "forty-seven million, nine hundred twenty-one thousand, one hundred sixty-five".