28406327 has 2 divisors, whose sum is σ = 28406328. Its totient is φ = 28406326.

The previous prime is 28406309. The next prime is 28406347. The reversal of 28406327 is 72360482.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28406327 - 2¹⁰ = 28405303 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28406293 and 28406302.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28406347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14203163 + 14203164.

It is an arithmetic number, because the mean of its divisors is an integer number (14203164).

Almost surely, 2^28406327 is an apocalyptic number.

28406327 is a deficient number, since it is larger than the sum of its proper divisors (1).

28406327 is an equidigital number, since it uses as much as digits as its factorization.

28406327 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 28406327 is about 5329.7586249285. The cubic root of 28406327 is about 305.1207154516.

The spelling of 28406327 in words is "twenty-eight million, four hundred six thousand, three hundred twenty-seven".