3287945 has 4 divisors (see below), whose sum is σ = 3945540. Its totient is φ = 2630352.

The previous prime is 3287941. The next prime is 3287957. The reversal of 3287945 is 5497823.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1951609 + 1336336 = 1397^2 + 1156^2 .

It is a cyclic number.

It is not a de Polignac number, because 3287945 - 2² = 3287941 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3287899 and 3287908.

It is not an unprimeable number, because it can be changed into a prime (3287941) 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, 328790 + ... + 328799.

It is an arithmetic number, because the mean of its divisors is an integer number (986385).

Almost surely, 2^3287945 is an apocalyptic number.

It is an amenable number.

3287945 is a deficient number, since it is larger than the sum of its proper divisors (657595).

3287945 is an equidigital number, since it uses as much as digits as its factorization.

3287945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 657594.

The product of its digits is 60480, while the sum is 38.

The square root of 3287945 is about 1813.2691471483. The cubic root of 3287945 is about 148.6990457023.

The spelling of 3287945 in words is "three million, two hundred eighty-seven thousand, nine hundred forty-five".