3405427 has 4 divisors (see below), whose sum is σ = 3584680. Its totient is φ = 3226176.

The previous prime is 3405397. The next prime is 3405431. The reversal of 3405427 is 7245043.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3405427 - 2¹⁹ = 2881139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3405527) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 89598 + ... + 89635.

It is an arithmetic number, because the mean of its divisors is an integer number (896170).

Almost surely, 2^3405427 is an apocalyptic number.

3405427 is a deficient number, since it is larger than the sum of its proper divisors (179253).

3405427 is a wasteful number, since it uses less digits than its factorization.

3405427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179252.

The product of its (nonzero) digits is 3360, while the sum is 25.

The square root of 3405427 is about 1845.3799066859. The cubic root of 3405427 is about 150.4494224884.

The spelling of 3405427 in words is "three million, four hundred five thousand, four hundred twenty-seven".