43984869 has 8 divisors (see below), whose sum is σ = 58801152. Its totient is φ = 29245920.

The previous prime is 43984847. The next prime is 43984873. The reversal of 43984869 is 96848934.

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 43984869 - 2⁷ = 43984741 is a prime.

It is a super-2 number, since 2×43984869² = 3869337401894322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43984469) 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, 17992 + ... + 20289.

It is an arithmetic number, because the mean of its divisors is an integer number (7350144).

Almost surely, 2^43984869 is an apocalyptic number.

It is an amenable number.

43984869 is a deficient number, since it is larger than the sum of its proper divisors (14816283).

43984869 is a wasteful number, since it uses less digits than its factorization.

43984869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38667.

The product of its digits is 1492992, while the sum is 51.

The square root of 43984869 is about 6632.1089406010. The cubic root of 43984869 is about 352.9943609379.

The spelling of 43984869 in words is "forty-three million, nine hundred eighty-four thousand, eight hundred sixty-nine".