4247997 has 8 divisors (see below), whose sum is σ = 6099744. Its totient is φ = 2614128.

The previous prime is 4247983. The next prime is 4248017. The reversal of 4247997 is 7997424.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4247997 - 2⁴ = 4247981 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4247917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54423 + ... + 54500.

It is an arithmetic number, because the mean of its divisors is an integer number (762468).

Almost surely, 2^4247997 is an apocalyptic number.

It is an amenable number.

4247997 is a deficient number, since it is larger than the sum of its proper divisors (1851747).

4247997 is a wasteful number, since it uses less digits than its factorization.

4247997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108939.

The product of its digits is 127008, while the sum is 42.

The square root of 4247997 is about 2061.0669566999. The cubic root of 4247997 is about 161.9551392321.

The spelling of 4247997 in words is "four million, two hundred forty-seven thousand, nine hundred ninety-seven".