3247428 has 12 divisors (see below), whose sum is σ = 7577360. Its totient is φ = 1082472.

The previous prime is 3247427. The next prime is 3247429. The reversal of 3247428 is 8247423.

3247428 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (3247427) and next prime (3247429).

It is a tau number, because it is divible by the number of its divisors (12).

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 3247395 and 3247404.

It is not an unprimeable number, because it can be changed into a prime (3247421) 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, 135298 + ... + 135321.

Almost surely, 2^3247428 is an apocalyptic number.

It is an amenable number.

3247428 is an abundant number, since it is smaller than the sum of its proper divisors (4329932).

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

3247428 is a wasteful number, since it uses less digits than its factorization.

3247428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270626 (or 270624 counting only the distinct ones).

The product of its digits is 10752, while the sum is 30.

The square root of 3247428 is about 1802.0621520913. The cubic root of 3247428 is about 148.0857185446.

The spelling of 3247428 in words is "three million, two hundred forty-seven thousand, four hundred twenty-eight".