4243387 has 6 divisors (see below), whose sum is σ = 4507988. Its totient is φ = 3993504.

The previous prime is 4243361. The next prime is 4243391. The reversal of 4243387 is 7833424.

It is a happy number.

It is not a de Polignac number, because 4243387 - 2¹¹ = 4241339 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4243307) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7053 + ... + 7630.

Almost surely, 2^4243387 is an apocalyptic number.

4243387 is a deficient number, since it is larger than the sum of its proper divisors (264601).

4243387 is a wasteful number, since it uses less digits than its factorization.

4243387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14717 (or 14700 counting only the distinct ones).

The product of its digits is 16128, while the sum is 31.

The square root of 4243387 is about 2059.9483003221. The cubic root of 4243387 is about 161.8965325182.

The spelling of 4243387 in words is "four million, two hundred forty-three thousand, three hundred eighty-seven".