85959939 has 32 divisors (see below), whose sum is σ = 131423040. Its totient is φ = 49508352.

The previous prime is 85959893. The next prime is 85959949. The reversal of 85959939 is 93995958.

It is not a de Polignac number, because 85959939 - 2¹² = 85955843 is a prime.

It is a super-2 number, since 2×85959939² = 14778222225767442, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (85959949) 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 31 ways as a sum of consecutive naturals, for example, 209967 + ... + 210375.

It is an arithmetic number, because the mean of its divisors is an integer number (4106970).

Almost surely, 2^85959939 is an apocalyptic number.

85959939 is a deficient number, since it is larger than the sum of its proper divisors (45463101).

85959939 is a wasteful number, since it uses less digits than its factorization.

85959939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 759.

The product of its digits is 3936600, while the sum is 57.

The square root of 85959939 is about 9271.4582995341. The cubic root of 85959939 is about 441.3319470515.

The spelling of 85959939 in words is "eighty-five million, nine hundred fifty-nine thousand, nine hundred thirty-nine".