428658361 has 2 divisors, whose sum is σ = 428658362. Its totient is φ = 428658360.

The previous prime is 428658353. The next prime is 428658389. The reversal of 428658361 is 163856824.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 384356025 + 44302336 = 19605^2 + 6656^2 .

It is a cyclic number.

It is not a de Polignac number, because 428658361 - 2³ = 428658353 is a prime.

It is not a weakly prime, because it can be changed into another prime (428658301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 214329180 + 214329181.

It is an arithmetic number, because the mean of its divisors is an integer number (214329181).

Almost surely, 2^428658361 is an apocalyptic number.

It is an amenable number.

428658361 is a deficient number, since it is larger than the sum of its proper divisors (1).

428658361 is an equidigital number, since it uses as much as digits as its factorization.

428658361 is an evil number, because the sum of its binary digits is even.

The product of its digits is 276480, while the sum is 43.

The square root of 428658361 is about 20704.0662914317. The cubic root of 428658361 is about 753.9984151688.

The spelling of 428658361 in words is "four hundred twenty-eight million, six hundred fifty-eight thousand, three hundred sixty-one".