47726281 has 2 divisors, whose sum is σ = 47726282. Its totient is φ = 47726280.

The previous prime is 47726243. The next prime is 47726299. The reversal of 47726281 is 18262774.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 47610000 + 116281 = 6900^2 + 341^2 .

It is a cyclic number.

It is not a de Polignac number, because 47726281 - 2⁷ = 47726153 is a prime.

It is a super-2 number, since 2×47726281² = 4555595796181922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 47726281.

It is not a weakly prime, because it can be changed into another prime (47726201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23863140 + 23863141.

It is an arithmetic number, because the mean of its divisors is an integer number (23863141).

Almost surely, 2^47726281 is an apocalyptic number.

It is an amenable number.

47726281 is a deficient number, since it is larger than the sum of its proper divisors (1).

47726281 is an equidigital number, since it uses as much as digits as its factorization.

47726281 is an evil number, because the sum of its binary digits is even.

The product of its digits is 37632, while the sum is 37.

The square root of 47726281 is about 6908.4210207543. The cubic root of 47726281 is about 362.7319951331.

The spelling of 47726281 in words is "forty-seven million, seven hundred twenty-six thousand, two hundred eighty-one".