428718343 has 4 divisors (see below), whose sum is σ = 428825728. Its totient is φ = 428610960.

The previous prime is 428718341. The next prime is 428718373. The reversal of 428718343 is 343817824.

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

It is a cyclic number.

It is not a de Polignac number, because 428718343 - 2¹ = 428718341 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 428718296 and 428718305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428718341) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47463 + ... + 55768.

It is an arithmetic number, because the mean of its divisors is an integer number (107206432).

Almost surely, 2^428718343 is an apocalyptic number.

428718343 is a deficient number, since it is larger than the sum of its proper divisors (107385).

428718343 is a wasteful number, since it uses less digits than its factorization.

428718343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107384.

The product of its digits is 129024, while the sum is 40.

The square root of 428718343 is about 20705.5147967878. The cubic root of 428718343 is about 754.0335824315.

The spelling of 428718343 in words is "four hundred twenty-eight million, seven hundred eighteen thousand, three hundred forty-three".