428774343 has 4 divisors (see below), whose sum is σ = 571699128. Its totient is φ = 285849560.

The previous prime is 428774287. The next prime is 428774347. The reversal of 428774343 is 343477824.

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 428774343 - 2¹² = 428770247 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 428774295 and 428774304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428774347) 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, 71462388 + ... + 71462393.

It is an arithmetic number, because the mean of its divisors is an integer number (142924782).

Almost surely, 2^428774343 is an apocalyptic number.

428774343 is a deficient number, since it is larger than the sum of its proper divisors (142924785).

428774343 is a wasteful number, since it uses less digits than its factorization.

428774343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142924784.

The product of its digits is 451584, while the sum is 42.

The square root of 428774343 is about 20706.8670493631. The cubic root of 428774343 is about 754.0664120992.

The spelling of 428774343 in words is "four hundred twenty-eight million, seven hundred seventy-four thousand, three hundred forty-three".