867428027 has 4 divisors (see below), whose sum is σ = 869153040. Its totient is φ = 865703016.

The previous prime is 867427997. The next prime is 867428041. The reversal of 867428027 is 720824768.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-867428027 is a prime.

It is a super-2 number, since 2×867428027² = 1504862764050225458, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (867428057) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 861752 + ... + 862757.

It is an arithmetic number, because the mean of its divisors is an integer number (217288260).

Almost surely, 2^867428027 is an apocalyptic number.

867428027 is a deficient number, since it is larger than the sum of its proper divisors (1725013).

867428027 is a wasteful number, since it uses less digits than its factorization.

867428027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1725012.

The product of its (nonzero) digits is 301056, while the sum is 44.

The square root of 867428027 is about 29452.1311113474. The cubic root of 867428027 is about 953.6986109670.

The spelling of 867428027 in words is "eight hundred sixty-seven million, four hundred twenty-eight thousand, twenty-seven".