428310277 has 2 divisors, whose sum is σ = 428310278. Its totient is φ = 428310276.

The previous prime is 428310247. The next prime is 428310307. The reversal of 428310277 is 772013824.

It is a balanced prime because it is at equal distance from previous prime (428310247) and next prime (428310307).

It can be written as a sum of positive squares in only one way, i.e., 393665281 + 34644996 = 19841^2 + 5886^2 .

It is a cyclic number.

It is not a de Polignac number, because 428310277 - 2¹¹ = 428308229 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (428310247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 214155138 + 214155139.

It is an arithmetic number, because the mean of its divisors is an integer number (214155139).

Almost surely, 2^428310277 is an apocalyptic number.

It is an amenable number.

428310277 is a deficient number, since it is larger than the sum of its proper divisors (1).

428310277 is an equidigital number, since it uses as much as digits as its factorization.

428310277 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18816, while the sum is 34.

The square root of 428310277 is about 20695.6584094346. The cubic root of 428310277 is about 753.7942698005.

The spelling of 428310277 in words is "four hundred twenty-eight million, three hundred ten thousand, two hundred seventy-seven".