3405966 has 8 divisors (see below), whose sum is σ = 6811944. Its totient is φ = 1135320.

The previous prime is 3405953. The next prime is 3405973. The reversal of 3405966 is 6695043.

It is a happy number.

3405966 is nontrivially palindromic in base 5.

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

3405966 is an admirable number.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 283825 + ... + 283836.

It is an arithmetic number, because the mean of its divisors is an integer number (851493).

Almost surely, 2^3405966 is an apocalyptic number.

3405966 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

3405966 is a wasteful number, since it uses less digits than its factorization.

3405966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 567666.

The product of its (nonzero) digits is 19440, while the sum is 33.

The square root of 3405966 is about 1845.5259412970. The cubic root of 3405966 is about 150.4573596194.

It can be divided in two parts, 3405 and 966, that added together give a triangular number (4371 = T₉₃).

The spelling of 3405966 in words is "three million, four hundred five thousand, nine hundred sixty-six".