3256605 has 80 divisors (see below), whose sum is σ = 6899904. Its totient is φ = 1451520.

The previous prime is 3256601. The next prime is 3256621. The reversal of 3256605 is 5066523.

3256605 is a `hidden beast` number, since 3 + 2 + 56 + 605 = 666.

3256605 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3256605 - 2² = 3256601 is a prime.

It is a super-2 number, since 2×3256605² = 21210952252050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3256601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 75714 + ... + 75756.

Almost surely, 2^3256605 is an apocalyptic number.

It is an amenable number.

3256605 is an abundant number, since it is smaller than the sum of its proper divisors (3643299).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3256605 is a wasteful number, since it uses less digits than its factorization.

3256605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88 (or 79 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

The square root of 3256605 is about 1804.6066053298. The cubic root of 3256605 is about 148.2250805788.

The spelling of 3256605 in words is "three million, two hundred fifty-six thousand, six hundred five".