47822281 has 8 divisors (see below), whose sum is σ = 52080840. Its totient is φ = 43646592.

The previous prime is 47822279. The next prime is 47822323. The reversal of 47822281 is 18222874.

It can be written as a sum of positive squares in 4 ways, for example, as 4473225 + 43349056 = 2115^2 + 6584^2 .

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 47822281 - 2¹ = 47822279 is a prime.

It is a super-2 number, since 2×47822281² = 4573941120085922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47820281) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19510 + ... + 21823.

It is an arithmetic number, because the mean of its divisors is an integer number (6510105).

Almost surely, 2^47822281 is an apocalyptic number.

It is an amenable number.

47822281 is a deficient number, since it is larger than the sum of its proper divisors (4258559).

47822281 is a wasteful number, since it uses less digits than its factorization.

47822281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41435.

The product of its digits is 14336, while the sum is 34.

The square root of 47822281 is about 6915.3655724047. The cubic root of 47822281 is about 362.9750404663.

The spelling of 47822281 in words is "forty-seven million, eight hundred twenty-two thousand, two hundred eighty-one".