3205965 has 32 divisors (see below), whose sum is σ = 6174720. Its totient is φ = 1387584.

The previous prime is 3205957. The next prime is 3205973. The reversal of 3205965 is 5695023.

It is an interprime number because it is at equal distance from previous prime (3205957) and next prime (3205973).

It is not a de Polignac number, because 3205965 - 2³ = 3205957 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1192 + ... + 2798.

It is an arithmetic number, because the mean of its divisors is an integer number (192960).

Almost surely, 2^3205965 is an apocalyptic number.

3205965 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3205965 is a deficient number, since it is larger than the sum of its proper divisors (2968755).

3205965 is a wasteful number, since it uses less digits than its factorization.

3205965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1641.

The product of its (nonzero) digits is 8100, while the sum is 30.

The square root of 3205965 is about 1790.5208739358. The cubic root of 3205965 is about 147.4527666440.

The spelling of 3205965 in words is "three million, two hundred five thousand, nine hundred sixty-five".