85198723 has 8 divisors (see below), whose sum is σ = 88920000. Its totient is φ = 81529728.

The previous prime is 85198709. The next prime is 85198727. The reversal of 85198723 is 32789158.

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 85198723 - 2¹⁷ = 85067651 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 85198723.

It is not an unprimeable number, because it can be changed into a prime (85198727) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9723 + ... + 16276.

It is an arithmetic number, because the mean of its divisors is an integer number (11115000).

Almost surely, 2^85198723 is an apocalyptic number.

85198723 is a deficient number, since it is larger than the sum of its proper divisors (3721277).

85198723 is a wasteful number, since it uses less digits than its factorization.

85198723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26141.

The product of its digits is 120960, while the sum is 43.

The square root of 85198723 is about 9230.3154333966. The cubic root of 85198723 is about 440.0253480576.

The spelling of 85198723 in words is "eighty-five million, one hundred ninety-eight thousand, seven hundred twenty-three".