47666216 has 24 divisors (see below), whose sum is σ = 96391470. Its totient is φ = 21967296.

The previous prime is 47666207. The next prime is 47666261. The reversal of 47666216 is 61266674.

It can be written as a sum of positive squares in 3 ways, for example, as 46977316 + 688900 = 6854^2 + 830^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 47666216.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 70070 + ... + 70746.

Almost surely, 2^47666216 is an apocalyptic number.

It is an amenable number.

47666216 is an abundant number, since it is smaller than the sum of its proper divisors (48725254).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

47666216 is an equidigital number, since it uses as much as digits as its factorization.

47666216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1373 (or 692 counting only the distinct ones).

The product of its digits is 72576, while the sum is 38.

The square root of 47666216 is about 6904.0724214046. The cubic root of 47666216 is about 362.5797614419.

The spelling of 47666216 in words is "forty-seven million, six hundred sixty-six thousand, two hundred sixteen".