47971223 has 2 divisors, whose sum is σ = 47971224. Its totient is φ = 47971222.

The previous prime is 47971213. The next prime is 47971237. The reversal of 47971223 is 32217974.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 47971223 - 2⁴ = 47971207 is a prime.

It is a super-2 number, since 2×47971223² = 4602476472231458, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47971213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23985611 + 23985612.

It is an arithmetic number, because the mean of its divisors is an integer number (23985612).

Almost surely, 2^47971223 is an apocalyptic number.

47971223 is a deficient number, since it is larger than the sum of its proper divisors (1).

47971223 is an equidigital number, since it uses as much as digits as its factorization.

47971223 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 21168, while the sum is 35.

The square root of 47971223 is about 6926.1261178237. The cubic root of 47971223 is about 363.3514772710.

The spelling of 47971223 in words is "forty-seven million, nine hundred seventy-one thousand, two hundred twenty-three".