4247028 has 18 divisors (see below), whose sum is σ = 10735634. Its totient is φ = 1415664.

The previous prime is 4247017. The next prime is 4247039. The reversal of 4247028 is 8207424.

It is an interprime number because it is at equal distance from previous prime (4247017) and next prime (4247039).

It can be written as a sum of positive squares in only one way, i.e., 4235364 + 11664 = 2058^2 + 108^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a junction number, because it is equal to n+sod(n) for n = 4246992 and 4247010.

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 58951 + ... + 59022.

Almost surely, 2^4247028 is an apocalyptic number.

It is an amenable number.

4247028 is an abundant number, since it is smaller than the sum of its proper divisors (6488606).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4247028 is a wasteful number, since it uses less digits than its factorization.

4247028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117983 (or 117978 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 27.

The square root of 4247028 is about 2060.8318708716. The cubic root of 4247028 is about 161.9428239014.

The spelling of 4247028 in words is "four million, two hundred forty-seven thousand, twenty-eight".