47868169 has 6 divisors (see below), whose sum is σ = 48791246. Its totient is φ = 46962240.

The previous prime is 47868151. The next prime is 47868173. The reversal of 47868169 is 96186874.

It can be written as a sum of positive squares in 3 ways, for example, as 27510025 + 20358144 = 5245^2 + 4512^2 .

It is not a de Polignac number, because 47868169 - 2¹⁵ = 47835401 is a prime.

It is a super-2 number, since 2×47868169² = 4582723206825122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47868179) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5712 + ... + 11329.

Almost surely, 2^47868169 is an apocalyptic number.

It is an amenable number.

47868169 is a deficient number, since it is larger than the sum of its proper divisors (923077).

47868169 is an equidigital number, since it uses as much as digits as its factorization.

47868169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17147 (or 17094 counting only the distinct ones).

The product of its digits is 580608, while the sum is 49.

The square root of 47868169 is about 6918.6826058145. The cubic root of 47868169 is about 363.0911012483.

The spelling of 47868169 in words is "forty-seven million, eight hundred sixty-eight thousand, one hundred sixty-nine".