4247899 has 4 divisors (see below), whose sum is σ = 4384960. Its totient is φ = 4110840.

The previous prime is 4247863. The next prime is 4247917. The reversal of 4247899 is 9987424.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 4247899 - 2¹¹ = 4245851 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4247809) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68484 + ... + 68545.

It is an arithmetic number, because the mean of its divisors is an integer number (1096240).

Almost surely, 2^4247899 is an apocalyptic number.

4247899 is a deficient number, since it is larger than the sum of its proper divisors (137061).

4247899 is a wasteful number, since it uses less digits than its factorization.

4247899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137060.

The product of its digits is 145152, while the sum is 43.

The square root of 4247899 is about 2061.0431824685. The cubic root of 4247899 is about 161.9538938039.

The spelling of 4247899 in words is "four million, two hundred forty-seven thousand, eight hundred ninety-nine".