3490805 has 8 divisors (see below), whose sum is σ = 4205472. Its totient is φ = 2781648.

The previous prime is 3490793. The next prime is 3490807. The reversal of 3490805 is 5080943.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3490805 - 2⁴ = 3490789 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3490807) 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 7 ways as a sum of consecutive naturals, for example, 182 + ... + 2648.

It is an arithmetic number, because the mean of its divisors is an integer number (525684).

Almost surely, 2^3490805 is an apocalyptic number.

It is an amenable number.

3490805 is a deficient number, since it is larger than the sum of its proper divisors (714667).

3490805 is a wasteful number, since it uses less digits than its factorization.

3490805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2755.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 3490805 is about 1868.3696101147. The cubic root of 3490805 is about 151.6963727721.

The spelling of 3490805 in words is "three million, four hundred ninety thousand, eight hundred five".