4247887 has 18 divisors (see below), whose sum is σ = 5251704. Its totient is φ = 3365280.

The previous prime is 4247863. The next prime is 4247917. The reversal of 4247887 is 7887424.

It is a happy number.

It is not a de Polignac number, because 4247887 - 2⁷ = 4247759 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4247827) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 103587 + ... + 103627.

Almost surely, 2^4247887 is an apocalyptic number.

4247887 is a deficient number, since it is larger than the sum of its proper divisors (1003817).

4247887 is an equidigital number, since it uses as much as digits as its factorization.

4247887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127 (or 67 counting only the distinct ones).

The product of its digits is 100352, while the sum is 40.

The square root of 4247887 is about 2061.0402713193. The cubic root of 4247887 is about 161.9537413012.

The spelling of 4247887 in words is "four million, two hundred forty-seven thousand, eight hundred eighty-seven".