4243897 has 16 divisors (see below), whose sum is σ = 5408640. Its totient is φ = 3241728.

The previous prime is 4243879. The next prime is 4243903. The reversal of 4243897 is 7983424.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-4243897 is a prime.

It is a d-powerful number, because it can be written as 4⁷ + 2¹⁵ + 4¹¹ + 3⁴ + 8 + 9 + 7³ .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4243297) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1323 + ... + 3199.

It is an arithmetic number, because the mean of its divisors is an integer number (338040).

Almost surely, 2^4243897 is an apocalyptic number.

It is an amenable number.

4243897 is a deficient number, since it is larger than the sum of its proper divisors (1164743).

4243897 is a wasteful number, since it uses less digits than its factorization.

4243897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1920.

The product of its digits is 48384, while the sum is 37.

The square root of 4243897 is about 2060.0720861174. The cubic root of 4243897 is about 161.9030182118.

The spelling of 4243897 in words is "four million, two hundred forty-three thousand, eight hundred ninety-seven".