85723318 has 4 divisors (see below), whose sum is σ = 128584980. Its totient is φ = 42861658.

The previous prime is 85723301. The next prime is 85723321. The reversal of 85723318 is 81332758.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21430828 + ... + 21430831.

It is an arithmetic number, because the mean of its divisors is an integer number (32146245).

Almost surely, 2^85723318 is an apocalyptic number.

85723318 is a deficient number, since it is larger than the sum of its proper divisors (42861662).

85723318 is a wasteful number, since it uses less digits than its factorization.

85723318 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42861661.

The product of its digits is 40320, while the sum is 37.

The square root of 85723318 is about 9258.6887840558. The cubic root of 85723318 is about 440.9266250131.

The spelling of 85723318 in words is "eighty-five million, seven hundred twenty-three thousand, three hundred eighteen".