3278965 has 16 divisors (see below), whose sum is σ = 4093056. Its totient is φ = 2520000.

The previous prime is 3278959. The next prime is 3278969. The reversal of 3278965 is 5698723.

It is not a de Polignac number, because 3278965 - 2⁷ = 3278837 is a prime.

It is a super-2 number, since 2×3278965² = 21503222942450, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3278969) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21640 + ... + 21790.

It is an arithmetic number, because the mean of its divisors is an integer number (255816).

Almost surely, 2^3278965 is an apocalyptic number.

It is an amenable number.

3278965 is a deficient number, since it is larger than the sum of its proper divisors (814091).

3278965 is a wasteful number, since it uses less digits than its factorization.

3278965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300.

The product of its digits is 90720, while the sum is 40.

The square root of 3278965 is about 1810.7912635089. The cubic root of 3278965 is about 148.5635471922.

The spelling of 3278965 in words is "three million, two hundred seventy-eight thousand, nine hundred sixty-five".