43845997 has 8 divisors (see below), whose sum is σ = 48742400. Its totient is φ = 39167280.

The previous prime is 43845973. The next prime is 43846001. The reversal of 43845997 is 79954834.

43845997 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 a de Polignac number, because none of the positive numbers 2^k-43845997 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 43845997.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43845947) 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, 53997 + ... + 54802.

It is an arithmetic number, because the mean of its divisors is an integer number (6092800).

Almost surely, 2^43845997 is an apocalyptic number.

It is an amenable number.

43845997 is a deficient number, since it is larger than the sum of its proper divisors (4896403).

43845997 is a wasteful number, since it uses less digits than its factorization.

43845997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108843.

The product of its digits is 1088640, while the sum is 49.

The square root of 43845997 is about 6621.6309924368. The cubic root of 43845997 is about 352.6224700617.

The spelling of 43845997 in words is "forty-three million, eight hundred forty-five thousand, nine hundred ninety-seven".