4247487 has 6 divisors (see below), whose sum is σ = 6135272. Its totient is φ = 2831652.

The previous prime is 4247471. The next prime is 4247513. The reversal of 4247487 is 7847424.

It is not a de Polignac number, because 4247487 - 2⁴ = 4247471 is a prime.

It is a super-2 number, since 2×4247487² = 36082291630338, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4247407) 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, 235963 + ... + 235980.

Almost surely, 2^4247487 is an apocalyptic number.

4247487 is a deficient number, since it is larger than the sum of its proper divisors (1887785).

4247487 is a wasteful number, since it uses less digits than its factorization.

4247487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 471949 (or 471946 counting only the distinct ones).

The product of its digits is 50176, while the sum is 36.

The square root of 4247487 is about 2060.9432306592. The cubic root of 4247487 is about 161.9486577126.

The spelling of 4247487 in words is "four million, two hundred forty-seven thousand, four hundred eighty-seven".