28999499 has 2 divisors, whose sum is σ = 28999500. Its totient is φ = 28999498.

The previous prime is 28999489. The next prime is 28999513. The reversal of 28999499 is 99499982.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28999499 - 2¹² = 28995403 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (28999429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14499749 + 14499750.

It is an arithmetic number, because the mean of its divisors is an integer number (14499750).

Almost surely, 2^28999499 is an apocalyptic number.

28999499 is a deficient number, since it is larger than the sum of its proper divisors (1).

28999499 is an equidigital number, since it uses as much as digits as its factorization.

28999499 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3779136, while the sum is 59.

The square root of 28999499 is about 5385.1182902514. The cubic root of 28999499 is about 307.2299133277.

The spelling of 28999499 in words is "twenty-eight million, nine hundred ninety-nine thousand, four hundred ninety-nine".