428945527 has 2 divisors, whose sum is σ = 428945528. Its totient is φ = 428945526.

The previous prime is 428945519. The next prime is 428945579. The reversal of 428945527 is 725549824.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 428945527 - 2³ = 428945519 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (428945507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 214472763 + 214472764.

It is an arithmetic number, because the mean of its divisors is an integer number (214472764).

Almost surely, 2^428945527 is an apocalyptic number.

428945527 is a deficient number, since it is larger than the sum of its proper divisors (1).

428945527 is an equidigital number, since it uses as much as digits as its factorization.

428945527 is an evil number, because the sum of its binary digits is even.

The product of its digits is 806400, while the sum is 46.

The square root of 428945527 is about 20711.0001448506. Note that the first 3 decimals coincide. The cubic root of 428945527 is about 754.1667499825.

The spelling of 428945527 in words is "four hundred twenty-eight million, nine hundred forty-five thousand, five hundred twenty-seven".