85603499 has 2 divisors, whose sum is σ = 85603500. Its totient is φ = 85603498.

The previous prime is 85603487. The next prime is 85603519. The reversal of 85603499 is 99430658.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85603499 is a prime.

It is a Chen prime.

It is a plaindrome in base 15.

It is not a weakly prime, because it can be changed into another prime (85603409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42801749 + 42801750.

It is an arithmetic number, because the mean of its divisors is an integer number (42801750).

Almost surely, 2^85603499 is an apocalyptic number.

85603499 is a deficient number, since it is larger than the sum of its proper divisors (1).

85603499 is an equidigital number, since it uses as much as digits as its factorization.

85603499 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 233280, while the sum is 44.

The square root of 85603499 is about 9252.2158967460. The cubic root of 85603499 is about 440.7210954772.

The spelling of 85603499 in words is "eighty-five million, six hundred three thousand, four hundred ninety-nine".