47671281 has 64 divisors (see below), whose sum is σ = 87989760. Its totient is φ = 24883200.

The previous prime is 47671277. The next prime is 47671289. The reversal of 47671281 is 18217674.

It is not a de Polignac number, because 47671281 - 2² = 47671277 is a prime.

It is a super-2 number, since 2×47671281² = 4545102064361922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (47671289) 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 63 ways as a sum of consecutive naturals, for example, 118681 + ... + 119081.

It is an arithmetic number, because the mean of its divisors is an integer number (1374840).

Almost surely, 2^47671281 is an apocalyptic number.

It is an amenable number.

47671281 is a deficient number, since it is larger than the sum of its proper divisors (40318479).

47671281 is a wasteful number, since it uses less digits than its factorization.

47671281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 471 (or 465 counting only the distinct ones).

The product of its digits is 18816, while the sum is 36.

The square root of 47671281 is about 6904.4392241514. The cubic root of 47671281 is about 362.5926035315.

The spelling of 47671281 in words is "forty-seven million, six hundred seventy-one thousand, two hundred eighty-one".