3205005 has 16 divisors (see below), whose sum is σ = 5248320. Its totient is φ = 1669248.

The previous prime is 3205003. The next prime is 3205009. The reversal of 3205005 is 5005023.

It is not a de Polignac number, because 3205005 - 2¹ = 3205003 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3205003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1840 + ... + 3129.

It is an arithmetic number, because the mean of its divisors is an integer number (328020).

Almost surely, 2^3205005 is an apocalyptic number.

It is an amenable number.

3205005 is a deficient number, since it is larger than the sum of its proper divisors (2043315).

3205005 is a wasteful number, since it uses less digits than its factorization.

3205005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5020.

The product of its (nonzero) digits is 150, while the sum is 15.

The square root of 3205005 is about 1790.2527754482. The cubic root of 3205005 is about 147.4380473330.

The spelling of 3205005 in words is "three million, two hundred five thousand, five".