85317757 has 12 divisors (see below), whose sum is σ = 99403360. Its totient is φ = 71733168.

The previous prime is 85317721. The next prime is 85317763. The reversal of 85317757 is 75771358.

It is not a de Polignac number, because 85317757 - 2¹⁹ = 84793469 is a prime.

It is a super-2 number, since 2×85317757² = 14558239319022098, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85317707) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17494 + ... + 21832.

Almost surely, 2^85317757 is an apocalyptic number.

It is an amenable number.

85317757 is a deficient number, since it is larger than the sum of its proper divisors (14085603).

85317757 is an equidigital number, since it uses as much as digits as its factorization.

85317757 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4452 (or 4399 counting only the distinct ones).

The product of its digits is 205800, while the sum is 43.

The square root of 85317757 is about 9236.7611747842. The cubic root of 85317757 is about 440.2301774312.

The spelling of 85317757 in words is "eighty-five million, three hundred seventeen thousand, seven hundred fifty-seven".