4247747 has 8 divisors (see below), whose sum is σ = 4876800. Its totient is φ = 3624264.

The previous prime is 4247743. The next prime is 4247753. The reversal of 4247747 is 7477424.

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

It is not a de Polignac number, because 4247747 - 2² = 4247743 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4247741) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 404 + ... + 2942.

It is an arithmetic number, because the mean of its divisors is an integer number (609600).

Almost surely, 2^4247747 is an apocalyptic number.

4247747 is a deficient number, since it is larger than the sum of its proper divisors (629053).

4247747 is a wasteful number, since it uses less digits than its factorization.

4247747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2785.

The product of its digits is 43904, while the sum is 35.

The square root of 4247747 is about 2061.0063076080. The cubic root of 4247747 is about 161.9519620815.

It can be divided in two parts, 42477 and 47, that added together give a palindrome (42524).

The spelling of 4247747 in words is "four million, two hundred forty-seven thousand, seven hundred forty-seven".