85717444 has 12 divisors (see below), whose sum is σ = 152465068. Its totient is φ = 42156000.

The previous prime is 85717441. The next prime is 85717453. The reversal of 85717444 is 44471758.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 7182400 + 78535044 = 2680^2 + 8862^2 .

It is a junction number, because it is equal to n+sod(n) for n = 85717397 and 85717406.

It is not an unprimeable number, because it can be changed into a prime (85717441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 175407 + ... + 175894.

Almost surely, 2^85717444 is an apocalyptic number.

It is an amenable number.

85717444 is a deficient number, since it is larger than the sum of its proper divisors (66747624).

85717444 is a wasteful number, since it uses less digits than its factorization.

85717444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 351366 (or 351364 counting only the distinct ones).

The product of its digits is 125440, while the sum is 40.

The square root of 85717444 is about 9258.3715630774. The cubic root of 85717444 is about 440.9165536104.

The spelling of 85717444 in words is "eighty-five million, seven hundred seventeen thousand, four hundred forty-four".