43987134 has 8 divisors (see below), whose sum is σ = 87974280. Its totient is φ = 14662376.

The previous prime is 43987133. The next prime is 43987157. The reversal of 43987134 is 43178934.

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

43987134 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 43987092 and 43987101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43987133) 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, 3665589 + ... + 3665600.

It is an arithmetic number, because the mean of its divisors is an integer number (10996785).

Almost surely, 2^43987134 is an apocalyptic number.

43987134 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

43987134 is a wasteful number, since it uses less digits than its factorization.

43987134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7331194.

The product of its digits is 72576, while the sum is 39.

The square root of 43987134 is about 6632.2796985652. The cubic root of 43987134 is about 353.0004199799. Note that the first 3 decimals are identical.

The spelling of 43987134 in words is "forty-three million, nine hundred eighty-seven thousand, one hundred thirty-four".