3281197 has 4 divisors (see below), whose sum is σ = 3369916. Its totient is φ = 3192480.

The previous prime is 3281183. The next prime is 3281207. The reversal of 3281197 is 7911823.

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 1190281 + 2090916 = 1091^2 + 1446^2 .

It is a cyclic number.

It is not a de Polignac number, because 3281197 - 2¹⁹ = 2756909 is a prime.

It is a Duffinian number.

3281197 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3281137) 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, 44304 + ... + 44377.

It is an arithmetic number, because the mean of its divisors is an integer number (842479).

Almost surely, 2^3281197 is an apocalyptic number.

3281197 is a gapful number since it is divisible by the number (37) formed by its first and last digit.

It is an amenable number.

3281197 is a deficient number, since it is larger than the sum of its proper divisors (88719).

3281197 is an equidigital number, since it uses as much as digits as its factorization.

3281197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88718.

The product of its digits is 3024, while the sum is 31.

The square root of 3281197 is about 1811.4074638247. The cubic root of 3281197 is about 148.5972487440.

The spelling of 3281197 in words is "three million, two hundred eighty-one thousand, one hundred ninety-seven".