47456871 has 16 divisors (see below), whose sum is σ = 78889728. Its totient is φ = 24652800.

The previous prime is 47456869. The next prime is 47456909. The reversal of 47456871 is 17865474.

It is not a de Polignac number, because 47456871 - 2¹ = 47456869 is a prime.

It is a super-2 number, since 2×47456871² = 4504309210221282, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47456831) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 102490 + ... + 102951.

It is an arithmetic number, because the mean of its divisors is an integer number (4930608).

Almost surely, 2^47456871 is an apocalyptic number.

47456871 is a deficient number, since it is larger than the sum of its proper divisors (31432857).

47456871 is a wasteful number, since it uses less digits than its factorization.

47456871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205462.

The product of its digits is 188160, while the sum is 42.

The square root of 47456871 is about 6888.8947589581. The cubic root of 47456871 is about 362.0481784213.

The spelling of 47456871 in words is "forty-seven million, four hundred fifty-six thousand, eight hundred seventy-one".