428514171 has 4 divisors (see below), whose sum is σ = 571352232. Its totient is φ = 285676112.

The previous prime is 428514157. The next prime is 428514187. The reversal of 428514171 is 171415824.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 428514171 - 2⁵ = 428514139 is a prime.

It is not an unprimeable number, because it can be changed into a prime (428514101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71419026 + ... + 71419031.

It is an arithmetic number, because the mean of its divisors is an integer number (142838058).

Almost surely, 2^428514171 is an apocalyptic number.

428514171 is a deficient number, since it is larger than the sum of its proper divisors (142838061).

428514171 is a wasteful number, since it uses less digits than its factorization.

428514171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142838060.

The product of its digits is 8960, while the sum is 33.

The square root of 428514171 is about 20700.5838323464. The cubic root of 428514171 is about 753.9138635898.

Adding to 428514171 its reverse (171415824), we get a palindrome (599929995).

The spelling of 428514171 in words is "four hundred twenty-eight million, five hundred fourteen thousand, one hundred seventy-one".