47668281 has 16 divisors (see below), whose sum is σ = 65345280. Its totient is φ = 30890880.

The previous prime is 47668277. The next prime is 47668301. The reversal of 47668281 is 18286674.

It is not a de Polignac number, because 47668281 - 2² = 47668277 is a prime.

It is a super-2 number, since 2×47668281² = 4544530026989922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (47661281) 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, 45360 + ... + 46398.

It is an arithmetic number, because the mean of its divisors is an integer number (4084080).

Almost surely, 2^47668281 is an apocalyptic number.

47668281 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

It is an amenable number.

47668281 is a deficient number, since it is larger than the sum of its proper divisors (17676999).

47668281 is a wasteful number, since it uses less digits than its factorization.

47668281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1456.

The product of its digits is 129024, while the sum is 42.

The square root of 47668281 is about 6904.2219692012. The cubic root of 47668281 is about 362.5849972704.

The spelling of 47668281 in words is "forty-seven million, six hundred sixty-eight thousand, two hundred eighty-one".