28555327 has 2 divisors, whose sum is σ = 28555328. Its totient is φ = 28555326.

The previous prime is 28555301. The next prime is 28555357. The reversal of 28555327 is 72355582.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28555327 - 2¹⁹ = 28031039 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28555357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14277663 + 14277664.

It is an arithmetic number, because the mean of its divisors is an integer number (14277664).

Almost surely, 2^28555327 is an apocalyptic number.

28555327 is a deficient number, since it is larger than the sum of its proper divisors (1).

28555327 is an equidigital number, since it uses as much as digits as its factorization.

28555327 is an evil number, because the sum of its binary digits is even.

The product of its digits is 84000, while the sum is 37.

The square root of 28555327 is about 5343.7184618952. The cubic root of 28555327 is about 305.6532696754.

It can be divided in two parts, 28555 and 327, that added together give a palindrome (28882).

The spelling of 28555327 in words is "twenty-eight million, five hundred fifty-five thousand, three hundred twenty-seven".