85789899 has 24 divisors (see below), whose sum is σ = 136299072. Its totient is φ = 51667200.

The previous prime is 85789853. The next prime is 85789909. The reversal of 85789899 is 99898758.

It is not a de Polignac number, because 85789899 - 2⁹ = 85789387 is a prime.

It is not an unprimeable number, because it can be changed into a prime (85789829) 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 in 23 ways as a sum of consecutive naturals, for example, 2302 + ... + 13299.

It is an arithmetic number, because the mean of its divisors is an integer number (5679128).

Almost surely, 2^85789899 is an apocalyptic number.

85789899 is a deficient number, since it is larger than the sum of its proper divisors (50509173).

85789899 is a wasteful number, since it uses less digits than its factorization.

85789899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15667 (or 15664 counting only the distinct ones).

The product of its digits is 13063680, while the sum is 63.

The square root of 85789899 is about 9262.2836816846. The cubic root of 85789899 is about 441.0407508581.

The spelling of 85789899 in words is "eighty-five million, seven hundred eighty-nine thousand, eight hundred ninety-nine".