47792281 has 2 divisors, whose sum is σ = 47792282. Its totient is φ = 47792280.

The previous prime is 47792257. The next prime is 47792293. The reversal of 47792281 is 18229774.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42575625 + 5216656 = 6525^2 + 2284^2 .

It is a cyclic number.

It is not a de Polignac number, because 47792281 - 2⁷ = 47792153 is a prime.

It is a super-2 number, since 2×47792281² = 4568204246365922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (47792081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23896140 + 23896141.

It is an arithmetic number, because the mean of its divisors is an integer number (23896141).

Almost surely, 2^47792281 is an apocalyptic number.

It is an amenable number.

47792281 is a deficient number, since it is larger than the sum of its proper divisors (1).

47792281 is an equidigital number, since it uses as much as digits as its factorization.

47792281 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 56448, while the sum is 40.

The square root of 47792281 is about 6913.1961493943. The cubic root of 47792281 is about 362.8991237680.

The spelling of 47792281 in words is "forty-seven million, seven hundred ninety-two thousand, two hundred eighty-one".