43116987 has 8 divisors (see below), whose sum is σ = 57523536. Its totient is φ = 28727552.

The previous prime is 43116971. The next prime is 43117013. The reversal of 43116987 is 78961134.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 43116987 - 2⁴ = 43116971 is a prime.

It is not an unprimeable number, because it can be changed into a prime (43116287) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3763 + ... + 10019.

It is an arithmetic number, because the mean of its divisors is an integer number (7190442).

Almost surely, 2^43116987 is an apocalyptic number.

43116987 is a deficient number, since it is larger than the sum of its proper divisors (14406549).

43116987 is a wasteful number, since it uses less digits than its factorization.

43116987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8557.

The product of its digits is 36288, while the sum is 39.

The square root of 43116987 is about 6566.3526405456. The cubic root of 43116987 is about 350.6572330966.

The spelling of 43116987 in words is "forty-three million, one hundred sixteen thousand, nine hundred eighty-seven".