85399769 has 8 divisors (see below), whose sum is σ = 105107520. Its totient is φ = 67568976.

The previous prime is 85399733. The next prime is 85399771. The reversal of 85399769 is 96799358.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 85399769 - 2²⁰ = 84351193 is a prime.

It is a super-2 number, since 2×85399769² = 14586241090506722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (85399169) 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 7 ways as a sum of consecutive naturals, for example, 469139 + ... + 469320.

It is an arithmetic number, because the mean of its divisors is an integer number (13138440).

Almost surely, 2^85399769 is an apocalyptic number.

It is an amenable number.

85399769 is a deficient number, since it is larger than the sum of its proper divisors (19707751).

85399769 is a wasteful number, since it uses less digits than its factorization.

85399769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 938479.

The product of its digits is 3674160, while the sum is 56.

The square root of 85399769 is about 9241.1995433493. The cubic root of 85399769 is about 440.3711898704.

It can be divided in two parts, 85399 and 769, that added together give a palindrome (86168).

The spelling of 85399769 in words is "eighty-five million, three hundred ninety-nine thousand, seven hundred sixty-nine".