3428357 has 4 divisors (see below), whose sum is σ = 3577440. Its totient is φ = 3279276.

The previous prime is 3428353. The next prime is 3428371. The reversal of 3428357 is 7538243.

3428357 = 84² + 85² + ... + 221².

It is a happy number.

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: 7538243 = 53 ⋅142231.

It is a cyclic number.

It is not a de Polignac number, because 3428357 - 2² = 3428353 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3428353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74507 + ... + 74552.

It is an arithmetic number, because the mean of its divisors is an integer number (894360).

Almost surely, 2^3428357 is an apocalyptic number.

It is an amenable number.

3428357 is a deficient number, since it is larger than the sum of its proper divisors (149083).

3428357 is a wasteful number, since it uses less digits than its factorization.

3428357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149082.

The product of its digits is 20160, while the sum is 32.

The square root of 3428357 is about 1851.5822963077. The cubic root of 3428357 is about 150.7863446183.

The spelling of 3428357 in words is "three million, four hundred twenty-eight thousand, three hundred fifty-seven".