28084087 has 2 divisors, whose sum is σ = 28084088. Its totient is φ = 28084086.

The previous prime is 28084079. The next prime is 28084097. The reversal of 28084087 is 78048082.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28084087 - 2³ = 28084079 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28084027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14042043 + 14042044.

It is an arithmetic number, because the mean of its divisors is an integer number (14042044).

Almost surely, 2^28084087 is an apocalyptic number.

28084087 is a deficient number, since it is larger than the sum of its proper divisors (1).

28084087 is an equidigital number, since it uses as much as digits as its factorization.

28084087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28672, while the sum is 37.

The square root of 28084087 is about 5299.4421404521. The cubic root of 28084087 is about 303.9625668070.

The spelling of 28084087 in words is "twenty-eight million, eighty-four thousand, eighty-seven".