3428743 has 2 divisors, whose sum is σ = 3428744. Its totient is φ = 3428742.

The previous prime is 3428717. The next prime is 3428783. The reversal of 3428743 is 3478243.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (3478243) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3428743 - 2⁹ = 3428231 is a prime.

3428743 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3428783) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1714371 + 1714372.

It is an arithmetic number, because the mean of its divisors is an integer number (1714372).

Almost surely, 2^3428743 is an apocalyptic number.

3428743 is a deficient number, since it is larger than the sum of its proper divisors (1).

3428743 is an equidigital number, since it uses as much as digits as its factorization.

3428743 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16128, while the sum is 31.

The square root of 3428743 is about 1851.6865285463. The cubic root of 3428743 is about 150.7920034363.

The spelling of 3428743 in words is "three million, four hundred twenty-eight thousand, seven hundred forty-three".