47284169 has 2 divisors, whose sum is σ = 47284170. Its totient is φ = 47284168.

The previous prime is 47284147. The next prime is 47284183. The reversal of 47284169 is 96148274.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 46308025 + 976144 = 6805^2 + 988^2 .

It is a cyclic number.

It is not a de Polignac number, because 47284169 - 2²⁰ = 46235593 is a prime.

It is a super-2 number, since 2×47284169² = 4471585276041122, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (47284189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23642084 + 23642085.

It is an arithmetic number, because the mean of its divisors is an integer number (23642085).

Almost surely, 2^47284169 is an apocalyptic number.

It is an amenable number.

47284169 is a deficient number, since it is larger than the sum of its proper divisors (1).

47284169 is an equidigital number, since it uses as much as digits as its factorization.

47284169 is an evil number, because the sum of its binary digits is even.

The product of its digits is 96768, while the sum is 41.

The square root of 47284169 is about 6876.3485222900. The cubic root of 47284169 is about 361.6084637616.

The spelling of 47284169 in words is "forty-seven million, two hundred eighty-four thousand, one hundred sixty-nine".