3212005 has 8 divisors (see below), whose sum is σ = 3864600. Its totient is φ = 2562816.

The previous prime is 3211987. The next prime is 3212009. The reversal of 3212005 is 5002123.

It can be written as a sum of positive squares in 4 ways, for example, as 36481 + 3175524 = 191^2 + 1782^2 .

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 3212005 - 2¹⁵ = 3179237 is a prime.

It is a super-2 number, since 2×3212005² = 20633952240050, which contains 22 as substring.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3212009) 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, 2281 + ... + 3409.

It is an arithmetic number, because the mean of its divisors is an integer number (483075).

Almost surely, 2^3212005 is an apocalyptic number.

It is an amenable number.

3212005 is a deficient number, since it is larger than the sum of its proper divisors (652595).

3212005 is a wasteful number, since it uses less digits than its factorization.

3212005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1703.

The product of its (nonzero) digits is 60, while the sum is 13.

The square root of 3212005 is about 1792.2067403065. The cubic root of 3212005 is about 147.5453083064.

Adding to 3212005 its reverse (5002123), we get a palindrome (8214128).

The spelling of 3212005 in words is "three million, two hundred twelve thousand, five".