43389147 has 4 divisors (see below), whose sum is σ = 57852200. Its totient is φ = 28926096.

The previous prime is 43389127. The next prime is 43389161. The reversal of 43389147 is 74198334.

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

It is not a de Polignac number, because 43389147 - 2⁷ = 43389019 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43389127) 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, 7231522 + ... + 7231527.

It is an arithmetic number, because the mean of its divisors is an integer number (14463050).

Almost surely, 2^43389147 is an apocalyptic number.

43389147 is a deficient number, since it is larger than the sum of its proper divisors (14463053).

43389147 is a wasteful number, since it uses less digits than its factorization.

43389147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14463052.

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

The square root of 43389147 is about 6587.0438741517. The cubic root of 43389147 is about 351.3934840988.

The spelling of 43389147 in words is "forty-three million, three hundred eighty-nine thousand, one hundred forty-seven".