428028027 has 16 divisors (see below), whose sum is σ = 652684032. Its totient is φ = 244418400.

The previous prime is 428028017. The next prime is 428028031. The reversal of 428028027 is 720820824.

It is not a de Polignac number, because 428028027 - 2¹² = 428023931 is a prime.

It is not an unprimeable number, because it can be changed into a prime (428028017) 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, 28152 + ... + 40602.

It is an arithmetic number, because the mean of its divisors is an integer number (40792752).

Almost surely, 2^428028027 is an apocalyptic number.

428028027 is a deficient number, since it is larger than the sum of its proper divisors (224656005).

428028027 is a wasteful number, since it uses less digits than its factorization.

428028027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14098.

The product of its (nonzero) digits is 14336, while the sum is 33.

The square root of 428028027 is about 20688.8382225779. The cubic root of 428028027 is about 753.6286537382.

The spelling of 428028027 in words is "four hundred twenty-eight million, twenty-eight thousand, twenty-seven".