3404257 has 4 divisors (see below), whose sum is σ = 3476736. Its totient is φ = 3331780.

The previous prime is 3404251. The next prime is 3404273. The reversal of 3404257 is 7524043.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 7524043 = 883 ⋅8521.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3404257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3404251) by changing a digit.

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, 36169 + ... + 36262.

It is an arithmetic number, because the mean of its divisors is an integer number (869184).

Almost surely, 2^3404257 is an apocalyptic number.

It is an amenable number.

3404257 is a deficient number, since it is larger than the sum of its proper divisors (72479).

3404257 is an equidigital number, since it uses as much as digits as its factorization.

3404257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72478.

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

The square root of 3404257 is about 1845.0628715575. The cubic root of 3404257 is about 150.4321905831.

The spelling of 3404257 in words is "three million, four hundred four thousand, two hundred fifty-seven".