3280947 has 8 divisors (see below), whose sum is σ = 4515840. Its totient is φ = 2116680.

The previous prime is 3280903. The next prime is 3280957. The reversal of 3280947 is 7490823.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3280947 - 2⁸ = 3280691 is a prime.

It is a super-2 number, since 2×3280947² = 21529226433618, which contains 22 as substring.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (3280957) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17547 + ... + 17732.

It is an arithmetic number, because the mean of its divisors is an integer number (564480).

Almost surely, 2^3280947 is an apocalyptic number.

3280947 is a deficient number, since it is larger than the sum of its proper divisors (1234893).

3280947 is a wasteful number, since it uses less digits than its factorization.

3280947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35313.

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 3280947 is about 1811.3384553970. The cubic root of 3280947 is about 148.5934746888.

The spelling of 3280947 in words is "three million, two hundred eighty thousand, nine hundred forty-seven".