85263983 has 4 divisors (see below), whose sum is σ = 97444560. Its totient is φ = 73083408.

The previous prime is 85263979. The next prime is 85264019. The reversal of 85263983 is 38936258.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 85263983 - 2² = 85263979 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85263923) 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 3 ways as a sum of consecutive naturals, for example, 6090278 + ... + 6090291.

It is an arithmetic number, because the mean of its divisors is an integer number (24361140).

Almost surely, 2^85263983 is an apocalyptic number.

85263983 is a deficient number, since it is larger than the sum of its proper divisors (12180577).

85263983 is a wasteful number, since it uses less digits than its factorization.

85263983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12180576.

The product of its digits is 311040, while the sum is 44.

The square root of 85263983 is about 9233.8498471656. The cubic root of 85263983 is about 440.1376686981.

The spelling of 85263983 in words is "eighty-five million, two hundred sixty-three thousand, nine hundred eighty-three".