43066087 has 4 divisors (see below), whose sum is σ = 43380576. Its totient is φ = 42751600.

The previous prime is 43066069. The next prime is 43066129. The reversal of 43066087 is 78066034.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 43066087 - 2¹⁹ = 42541799 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43066007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 157039 + ... + 157312.

It is an arithmetic number, because the mean of its divisors is an integer number (10845144).

Almost surely, 2^43066087 is an apocalyptic number.

43066087 is a deficient number, since it is larger than the sum of its proper divisors (314489).

43066087 is a wasteful number, since it uses less digits than its factorization.

43066087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314488.

The product of its (nonzero) digits is 24192, while the sum is 34.

The square root of 43066087 is about 6562.4756761454. The cubic root of 43066087 is about 350.5191940665.

The spelling of 43066087 in words is "forty-three million, sixty-six thousand, eighty-seven".