47916169 has 6 divisors (see below), whose sum is σ = 55739274. Its totient is φ = 41070960.

The previous prime is 47916137. The next prime is 47916191. The reversal of 47916169 is 96161974.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 45630025 + 2286144 = 6755^2 + 1512^2 .

It is not a de Polignac number, because 47916169 - 2⁵ = 47916137 is a prime.

It is a super-2 number, since 2×47916169² = 4591918503273122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47916109) 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, 488892 + ... + 488989.

It is an arithmetic number, because the mean of its divisors is an integer number (9289879).

Almost surely, 2^47916169 is an apocalyptic number.

47916169 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

It is an amenable number.

47916169 is a deficient number, since it is larger than the sum of its proper divisors (7823105).

47916169 is an equidigital number, since it uses as much as digits as its factorization.

47916169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 977895 (or 977888 counting only the distinct ones).

The product of its digits is 81648, while the sum is 43.

The square root of 47916169 is about 6922.1506051227. The cubic root of 47916169 is about 363.2124243948.

The spelling of 47916169 in words is "forty-seven million, nine hundred sixteen thousand, one hundred sixty-nine".