3212945 has 8 divisors (see below), whose sum is σ = 3869736. Its totient is φ = 2560896.

The previous prime is 3212927. The next prime is 3212947. The reversal of 3212945 is 5492123.

It can be written as a sum of positive squares in 4 ways, for example, as 1681 + 3211264 = 41^2 + 1792^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 3212945 - 2⁸ = 3212689 is a prime.

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

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3212947) 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, 539 + ... + 2591.

It is an arithmetic number, because the mean of its divisors is an integer number (483717).

Almost surely, 2^3212945 is an apocalyptic number.

It is an amenable number.

3212945 is a deficient number, since it is larger than the sum of its proper divisors (656791).

3212945 is a wasteful number, since it uses less digits than its factorization.

3212945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2371.

The product of its digits is 2160, while the sum is 26.

The square root of 3212945 is about 1792.4689676533. The cubic root of 3212945 is about 147.5597000506.

The spelling of 3212945 in words is "three million, two hundred twelve thousand, nine hundred forty-five".