4028247 has 12 divisors (see below), whose sum is σ = 6125080. Its totient is φ = 2544048.

The previous prime is 4028231. The next prime is 4028251. The reversal of 4028247 is 7428204.

It is not a de Polignac number, because 4028247 - 2⁴ = 4028231 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4028247.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4028267) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11608 + ... + 11949.

Almost surely, 2^4028247 is an apocalyptic number.

4028247 is a deficient number, since it is larger than the sum of its proper divisors (2096833).

4028247 is a wasteful number, since it uses less digits than its factorization.

4028247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23582 (or 23579 counting only the distinct ones).

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

The square root of 4028247 is about 2007.0493267481. The cubic root of 4028247 is about 159.1128900439.

It can be divided in two parts, 402 and 8247, that added together give a square (8649 = 93²).

The spelling of 4028247 in words is "four million, twenty-eight thousand, two hundred forty-seven".