85617573 has 8 divisors (see below), whose sum is σ = 114204288. Its totient is φ = 57054624.

The previous prime is 85617563. The next prime is 85617583. The reversal of 85617573 is 37571658.

It is an interprime number because it is at equal distance from previous prime (85617563) and next prime (85617583).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 85617573 - 2⁴ = 85617557 is a prime.

It is a super-3 number, since 3×85617573³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85617533) 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, 5761 + ... + 14297.

It is an arithmetic number, because the mean of its divisors is an integer number (14275536).

Almost surely, 2^85617573 is an apocalyptic number.

It is an amenable number.

85617573 is a deficient number, since it is larger than the sum of its proper divisors (28586715).

85617573 is a wasteful number, since it uses less digits than its factorization.

85617573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11883.

The product of its digits is 176400, while the sum is 42.

The square root of 85617573 is about 9252.9764400435. The cubic root of 85617573 is about 440.7452470165.

The spelling of 85617573 in words is "eighty-five million, six hundred seventeen thousand, five hundred seventy-three".