3280257 has 12 divisors (see below), whose sum is σ = 4914000. Its totient is φ = 2186676.

The previous prime is 3280231. The next prime is 3280279. The reversal of 3280257 is 7520823.

It is not a de Polignac number, because 3280257 - 2²⁰ = 2231681 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

3280257 is a lucky number.

It is a plaindrome in base 12.

It is a self number, because there is not a number n which added to its sum of digits gives 3280257.

It is not an unprimeable number, because it can be changed into a prime (3280297) 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, 6507 + ... + 6992.

It is an arithmetic number, because the mean of its divisors is an integer number (409500).

Almost surely, 2^3280257 is an apocalyptic number.

It is an amenable number.

3280257 is a deficient number, since it is larger than the sum of its proper divisors (1633743).

3280257 is an equidigital number, since it uses as much as digits as its factorization.

3280257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13514 (or 13502 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 3280257 is about 1811.1479784932. The cubic root of 3280257 is about 148.5830573016.

The spelling of 3280257 in words is "three million, two hundred eighty thousand, two hundred fifty-seven".