28587323 has 2 divisors, whose sum is σ = 28587324. Its totient is φ = 28587322.

The previous prime is 28587287. The next prime is 28587331. The reversal of 28587323 is 32378582.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28587323 - 2²⁴ = 11810107 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (28587023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14293661 + 14293662.

It is an arithmetic number, because the mean of its divisors is an integer number (14293662).

Almost surely, 2^28587323 is an apocalyptic number.

28587323 is a deficient number, since it is larger than the sum of its proper divisors (1).

28587323 is an equidigital number, since it uses as much as digits as its factorization.

28587323 is an evil number, because the sum of its binary digits is even.

The product of its digits is 80640, while the sum is 38.

The square root of 28587323 is about 5346.7114191810. The cubic root of 28587323 is about 305.7673876892.

The spelling of 28587323 in words is "twenty-eight million, five hundred eighty-seven thousand, three hundred twenty-three".