28866499 has 2 divisors, whose sum is σ = 28866500. Its totient is φ = 28866498.

The previous prime is 28866473. The next prime is 28866511. The reversal of 28866499 is 99466882.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28866499 - 2⁷ = 28866371 is a prime.

It is not a weakly prime, because it can be changed into another prime (28866599) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14433249 + 14433250.

It is an arithmetic number, because the mean of its divisors is an integer number (14433250).

Almost surely, 2^28866499 is an apocalyptic number.

28866499 is a deficient number, since it is larger than the sum of its proper divisors (1).

28866499 is an equidigital number, since it uses as much as digits as its factorization.

28866499 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1492992, while the sum is 52.

The square root of 28866499 is about 5372.7552521960. The cubic root of 28866499 is about 306.7595120315.

The spelling of 28866499 in words is "twenty-eight million, eight hundred sixty-six thousand, four hundred ninety-nine".