1028427 has 8 divisors (see below), whose sum is σ = 1418640. Its totient is φ = 661920.

The previous prime is 1028411. The next prime is 1028437. The reversal of 1028427 is 7248201.

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

It is not a de Polignac number, because 1028427 - 2⁴ = 1028411 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1028397 and 1028406.

It is not an unprimeable number, because it can be changed into a prime (1028437) 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, 5824 + ... + 5997.

It is an arithmetic number, because the mean of its divisors is an integer number (177330).

2^1028427 is an apocalyptic number.

1028427 is a deficient number, since it is larger than the sum of its proper divisors (390213).

1028427 is a wasteful number, since it uses less digits than its factorization.

1028427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11853.

The product of its (nonzero) digits is 896, while the sum is 24.

The square root of 1028427 is about 1014.1138989285. The cubic root of 1028427 is about 100.9387270089.

The spelling of 1028427 in words is "one million, twenty-eight thousand, four hundred twenty-seven".