428887277 has 8 divisors (see below), whose sum is σ = 527861376. Its totient is φ = 339339312.

The previous prime is 428887259. The next prime is 428887307. The reversal of 428887277 is 772788824.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 428887277 - 2⁶ = 428887213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428827277) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2356433 + ... + 2356614.

It is an arithmetic number, because the mean of its divisors is an integer number (65982672).

Almost surely, 2^428887277 is an apocalyptic number.

It is an amenable number.

428887277 is a deficient number, since it is larger than the sum of its proper divisors (98974099).

428887277 is a wasteful number, since it uses less digits than its factorization.

428887277 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4713067.

The product of its digits is 2809856, while the sum is 53.

The square root of 428887277 is about 20709.5938395711. The cubic root of 428887277 is about 754.1326102926.

The spelling of 428887277 in words is "four hundred twenty-eight million, eight hundred eighty-seven thousand, two hundred seventy-seven".