43487166 has 16 divisors (see below), whose sum is σ = 87836688. Its totient is φ = 14352000.

The previous prime is 43487161. The next prime is 43487167. The reversal of 43487166 is 66178434.

It is a super-2 number, since 2×43487166² = 3782267213423112, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43487161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35275 + ... + 36486.

It is an arithmetic number, because the mean of its divisors is an integer number (5489793).

Almost surely, 2^43487166 is an apocalyptic number.

43487166 is an abundant number, since it is smaller than the sum of its proper divisors (44349522).

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

43487166 is a wasteful number, since it uses less digits than its factorization.

43487166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71867.

The product of its digits is 96768, while the sum is 39.

The square root of 43487166 is about 6594.4799643338. The cubic root of 43487166 is about 351.6578922613.

The spelling of 43487166 in words is "forty-three million, four hundred eighty-seven thousand, one hundred sixty-six".