3212845 has 8 divisors (see below), whose sum is σ = 3921120. Its totient is φ = 2526480.

The previous prime is 3212819. The next prime is 3212849. The reversal of 3212845 is 5482123.

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

It is a de Polignac number, because none of the positive numbers 2^k-3212845 is a prime.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3212849) 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, 5151 + ... + 5740.

It is an arithmetic number, because the mean of its divisors is an integer number (490140).

Almost surely, 2^3212845 is an apocalyptic number.

It is an amenable number.

3212845 is a deficient number, since it is larger than the sum of its proper divisors (708275).

3212845 is a wasteful number, since it uses less digits than its factorization.

3212845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10955.

The product of its digits is 1920, while the sum is 25.

The square root of 3212845 is about 1792.4410729505. The cubic root of 3212845 is about 147.5581691474.

Adding to 3212845 its reverse (5482123), we get a palindrome (8694968).

The spelling of 3212845 in words is "three million, two hundred twelve thousand, eight hundred forty-five".