3404645 has 4 divisors (see below), whose sum is σ = 4085580. Its totient is φ = 2723712.

The previous prime is 3404579. The next prime is 3404651. The reversal of 3404645 is 5464043.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2515396 + 889249 = 1586^2 + 943^2 .

It is a cyclic number.

It is not a de Polignac number, because 3404645 - 2¹⁴ = 3388261 is a prime.

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, 340460 + ... + 340469.

It is an arithmetic number, because the mean of its divisors is an integer number (1021395).

Almost surely, 2^3404645 is an apocalyptic number.

It is an amenable number.

3404645 is a deficient number, since it is larger than the sum of its proper divisors (680935).

3404645 is an equidigital number, since it uses as much as digits as its factorization.

3404645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 680934.

The product of its (nonzero) digits is 5760, while the sum is 26.

The square root of 3404645 is about 1845.1680140302. The cubic root of 3404645 is about 150.4379055328.

Adding to 3404645 its reverse (5464043), we get a palindrome (8868688).

The spelling of 3404645 in words is "three million, four hundred four thousand, six hundred forty-five".