3206665 has 16 divisors (see below), whose sum is σ = 4798080. Its totient is φ = 1998720.

The previous prime is 3206653. The next prime is 3206677. The reversal of 3206665 is 5666023.

It is an interprime number because it is at equal distance from previous prime (3206653) and next prime (3206677).

It is not a de Polignac number, because 3206665 - 2⁵ = 3206633 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3780 + ... + 4549.

It is an arithmetic number, because the mean of its divisors is an integer number (299880).

Almost surely, 2^3206665 is an apocalyptic number.

3206665 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3206665 is a deficient number, since it is larger than the sum of its proper divisors (1591415).

3206665 is a wasteful number, since it uses less digits than its factorization.

3206665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8352.

The product of its (nonzero) digits is 6480, while the sum is 28.

The square root of 3206665 is about 1790.7163371121. The cubic root of 3206665 is about 147.4634976225.

It can be divided in two parts, 32066 and 65, that added together give a triangular number (32131 = T₂₅₃).

The spelling of 3206665 in words is "three million, two hundred six thousand, six hundred sixty-five".