3405939 has 16 divisors (see below), whose sum is σ = 4783104. Its totient is φ = 2152800.

The previous prime is 3405937. The next prime is 3405943. The reversal of 3405939 is 9395043.

It is not a de Polignac number, because 3405939 - 2¹ = 3405937 is a prime.

3405939 is a lucky number.

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (3405931) 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, 4584 + ... + 5274.

It is an arithmetic number, because the mean of its divisors is an integer number (298944).

Almost surely, 2^3405939 is an apocalyptic number.

3405939 is a deficient number, since it is larger than the sum of its proper divisors (1377165).

3405939 is a wasteful number, since it uses less digits than its factorization.

3405939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 778.

The product of its (nonzero) digits is 14580, while the sum is 33.

The square root of 3405939 is about 1845.5186262945. The cubic root of 3405939 is about 150.4569620465.

The spelling of 3405939 in words is "three million, four hundred five thousand, nine hundred thirty-nine".