28322027 has 4 divisors (see below), whose sum is σ = 29812680. Its totient is φ = 26831376.

The previous prime is 28322011. The next prime is 28322071. The reversal of 28322027 is 72022382.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 72022382 = 2 ⋅36011191.

It is a cyclic number.

It is not a de Polignac number, because 28322027 - 2⁴ = 28322011 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28321987 and 28322005.

It is not an unprimeable number, because it can be changed into a prime (28322227) 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, 745298 + ... + 745335.

It is an arithmetic number, because the mean of its divisors is an integer number (7453170).

Almost surely, 2^28322027 is an apocalyptic number.

28322027 is a deficient number, since it is larger than the sum of its proper divisors (1490653).

28322027 is a wasteful number, since it uses less digits than its factorization.

28322027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1490652.

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 28322027 is about 5321.8443231647. The cubic root of 28322027 is about 304.8185860159.

The spelling of 28322027 in words is "twenty-eight million, three hundred twenty-two thousand, twenty-seven".