85508636 has 6 divisors (see below), whose sum is σ = 149640120. Its totient is φ = 42754316.

The previous prime is 85508627. The next prime is 85508671. The reversal of 85508636 is 63680558.

It is a junction number, because it is equal to n+sod(n) for n = 85508593 and 85508602.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10688576 + ... + 10688583.

It is an arithmetic number, because the mean of its divisors is an integer number (24940020).

Almost surely, 2^85508636 is an apocalyptic number.

It is an amenable number.

85508636 is a deficient number, since it is larger than the sum of its proper divisors (64131484).

85508636 is a wasteful number, since it uses less digits than its factorization.

85508636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21377163 (or 21377161 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 41.

The square root of 85508636 is about 9247.0879740597. The cubic root of 85508636 is about 440.5582377329.

The spelling of 85508636 in words is "eighty-five million, five hundred eight thousand, six hundred thirty-six".