428177 has 2 divisors, whose sum is σ = 428178. Its totient is φ = 428176.

The previous prime is 428173. The next prime is 428221. The reversal of 428177 is 771824.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 226576 + 201601 = 476^2 + 449^2 .

It is a cyclic number.

It is not a de Polignac number, because 428177 - 2² = 428173 is a prime.

It is not a weakly prime, because it can be changed into another prime (428173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 214088 + 214089.

It is an arithmetic number, because the mean of its divisors is an integer number (214089).

2⁴²⁸¹⁷⁷ is an apocalyptic number.

It is an amenable number.

428177 is a deficient number, since it is larger than the sum of its proper divisors (1).

428177 is an equidigital number, since it uses as much as digits as its factorization.

428177 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3136, while the sum is 29.

The square root of 428177 is about 654.3523515660. The cubic root of 428177 is about 75.3716075816.

It can be divided in two parts, 42817 and 7, that added together give a palindrome (42824).

The spelling of 428177 in words is "four hundred twenty-eight thousand, one hundred seventy-seven".