3006905 has 16 divisors (see below), whose sum is σ = 4109184. Its totient is φ = 2090880.

The previous prime is 3006901. The next prime is 3006917. The reversal of 3006905 is 5096003.

It is not a de Polignac number, because 3006905 - 2² = 3006901 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3006901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77 + ... + 2453.

It is an arithmetic number, because the mean of its divisors is an integer number (256824).

Almost surely, 2^3006905 is an apocalyptic number.

It is an amenable number.

3006905 is a deficient number, since it is larger than the sum of its proper divisors (1102279).

3006905 is a wasteful number, since it uses less digits than its factorization.

3006905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2416.

The product of its (nonzero) digits is 810, while the sum is 23.

The square root of 3006905 is about 1734.0429637123. The cubic root of 3006905 is about 144.3355248360.

The spelling of 3006905 in words is "three million, six thousand, nine hundred five".