428298277 has 16 divisors (see below), whose sum is σ = 474128640. Its totient is φ = 383656000.

The previous prime is 428298271. The next prime is 428298281. The reversal of 428298277 is 772892824.

It is a cyclic number.

It is not a de Polignac number, because 428298277 - 2⁷ = 428298149 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 428298277.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428298271) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 264723 + ... + 266335.

It is an arithmetic number, because the mean of its divisors is an integer number (29633040).

Almost surely, 2^428298277 is an apocalyptic number.

It is an amenable number.

428298277 is a deficient number, since it is larger than the sum of its proper divisors (45830363).

428298277 is a wasteful number, since it uses less digits than its factorization.

428298277 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1964.

The product of its digits is 903168, while the sum is 49.

The square root of 428298277 is about 20695.3684915249. The cubic root of 428298277 is about 753.7872300319.

The spelling of 428298277 in words is "four hundred twenty-eight million, two hundred ninety-eight thousand, two hundred seventy-seven".