43874999 has 8 divisors (see below), whose sum is σ = 51872160. Its totient is φ = 36310176.

The previous prime is 43874989. The next prime is 43875023. The reversal of 43874999 is 99947834.

It is a happy number.

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

It is not a de Polignac number, because 43874999 - 2¹² = 43870903 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 43874999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43874939) 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, 107864 + ... + 108269.

It is an arithmetic number, because the mean of its divisors is an integer number (6484020).

Almost surely, 2^43874999 is an apocalyptic number.

43874999 is a deficient number, since it is larger than the sum of its proper divisors (7997161).

43874999 is a wasteful number, since it uses less digits than its factorization.

43874999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216169.

The product of its digits is 1959552, while the sum is 53.

The square root of 43874999 is about 6623.8205742607. The cubic root of 43874999 is about 352.7002004785.

The spelling of 43874999 in words is "forty-three million, eight hundred seventy-four thousand, nine hundred ninety-nine".