428583943 has 2 divisors, whose sum is σ = 428583944. Its totient is φ = 428583942.

The previous prime is 428583937. The next prime is 428583971. The reversal of 428583943 is 349385824.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 428583943 - 2²¹ = 426486791 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 428583893 and 428583902.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (428583983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 214291971 + 214291972.

It is an arithmetic number, because the mean of its divisors is an integer number (214291972).

Almost surely, 2^428583943 is an apocalyptic number.

428583943 is a deficient number, since it is larger than the sum of its proper divisors (1).

428583943 is an equidigital number, since it uses as much as digits as its factorization.

428583943 is an evil number, because the sum of its binary digits is even.

The product of its digits is 829440, while the sum is 46.

The square root of 428583943 is about 20702.2690302295. The cubic root of 428583943 is about 753.9547795633.

The spelling of 428583943 in words is "four hundred twenty-eight million, five hundred eighty-three thousand, nine hundred forty-three".