3428505 has 24 divisors (see below), whose sum is σ = 6045000. Its totient is φ = 1797120.

The previous prime is 3428501. The next prime is 3428563. The reversal of 3428505 is 5058243.

It can be written as a sum of positive squares in 4 ways, for example, as 2304 + 3426201 = 48^2 + 1851^2 .

It is not a de Polignac number, because 3428505 - 2² = 3428501 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3428501) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2121 + ... + 3369.

It is an arithmetic number, because the mean of its divisors is an integer number (251875).

Almost surely, 2^3428505 is an apocalyptic number.

It is an amenable number.

3428505 is a deficient number, since it is larger than the sum of its proper divisors (2616495).

3428505 is a wasteful number, since it uses less digits than its factorization.

3428505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1321 (or 1318 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 3428505 is about 1851.6222616938. The cubic root of 3428505 is about 150.7885143708.

The spelling of 3428505 in words is "three million, four hundred twenty-eight thousand, five hundred five".