428360871 has 16 divisors (see below), whose sum is σ = 603722240. Its totient is φ = 269412480.

The previous prime is 428360869. The next prime is 428360899. The reversal of 428360871 is 178063824.

It is not a de Polignac number, because 428360871 - 2¹ = 428360869 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428360071) 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, 1855 + ... + 29328.

It is an arithmetic number, because the mean of its divisors is an integer number (37732640).

Almost surely, 2^428360871 is an apocalyptic number.

428360871 is a deficient number, since it is larger than the sum of its proper divisors (175361369).

428360871 is a wasteful number, since it uses less digits than its factorization.

428360871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31446.

The product of its (nonzero) digits is 64512, while the sum is 39.

The square root of 428360871 is about 20696.8807070051. The cubic root of 428360871 is about 753.8239491924.

The spelling of 428360871 in words is "four hundred twenty-eight million, three hundred sixty thousand, eight hundred seventy-one".