43097989 has 8 divisors (see below), whose sum is σ = 47063520. Its totient is φ = 39140400.

The previous prime is 43097969. The next prime is 43098001. The reversal of 43097989 is 98979034.

43097989 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 43097989 - 2¹³ = 43089797 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43097939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20227 + ... + 22255.

It is an arithmetic number, because the mean of its divisors is an integer number (5882940).

Almost surely, 2^43097989 is an apocalyptic number.

It is an amenable number.

43097989 is a deficient number, since it is larger than the sum of its proper divisors (3965531).

43097989 is a wasteful number, since it uses less digits than its factorization.

43097989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3971.

The product of its (nonzero) digits is 489888, while the sum is 49.

The square root of 43097989 is about 6564.9058637577. The cubic root of 43097989 is about 350.6057238946.

The spelling of 43097989 in words is "forty-three million, ninety-seven thousand, nine hundred eighty-nine".