3405684 has 12 divisors (see below), whose sum is σ = 7946624. Its totient is φ = 1135224.

The previous prime is 3405671. The next prime is 3405697. The reversal of 3405684 is 4865043.

It is an interprime number because it is at equal distance from previous prime (3405671) and next prime (3405697).

It is a tau number, because it is divible by the number of its divisors (12).

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 141892 + ... + 141915.

Almost surely, 2^3405684 is an apocalyptic number.

It is an amenable number.

3405684 is an abundant number, since it is smaller than the sum of its proper divisors (4540940).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3405684 is a wasteful number, since it uses less digits than its factorization.

3405684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283814 (or 283812 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 3405684 is about 1845.4495387303. The cubic root of 3405684 is about 150.4532070876.

The spelling of 3405684 in words is "three million, four hundred five thousand, six hundred eighty-four".