85992643 has 6 divisors (see below), whose sum is σ = 94520972. Its totient is φ = 78175020.

The previous prime is 85992631. The next prime is 85992649. The reversal of 85992643 is 34629958.

It is a de Polignac number, because none of the positive numbers 2^k-85992643 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 85992593 and 85992602.

It is not an unprimeable number, because it can be changed into a prime (85992649) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 355221 + ... + 355462.

Almost surely, 2^85992643 is an apocalyptic number.

85992643 is a deficient number, since it is larger than the sum of its proper divisors (8528329).

85992643 is a wasteful number, since it uses less digits than its factorization.

85992643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 710705 (or 710694 counting only the distinct ones).

The product of its digits is 466560, while the sum is 46.

The square root of 85992643 is about 9273.2218241558. The cubic root of 85992643 is about 441.3879091277.

The spelling of 85992643 in words is "eighty-five million, nine hundred ninety-two thousand, six hundred forty-three".