85723297 has 6 divisors (see below), whose sum is σ = 94224914. Its totient is φ = 77930160.

The previous prime is 85723289. The next prime is 85723301. The reversal of 85723297 is 79232758.

It can be written as a sum of positive squares in only one way, i.e., 67881121 + 17842176 = 8239^2 + 4224^2 .

It is not a de Polignac number, because 85723297 - 2³ = 85723289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85723237) 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, 354108 + ... + 354349.

Almost surely, 2^85723297 is an apocalyptic number.

It is an amenable number.

85723297 is a deficient number, since it is larger than the sum of its proper divisors (8501617).

85723297 is a wasteful number, since it uses less digits than its factorization.

85723297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 708479 (or 708468 counting only the distinct ones).

The product of its digits is 211680, while the sum is 43.

The square root of 85723297 is about 9258.6876499858. The cubic root of 85723297 is about 440.9265890079.

The spelling of 85723297 in words is "eighty-five million, seven hundred twenty-three thousand, two hundred ninety-seven".