85939556 has 12 divisors (see below), whose sum is σ = 159241068. Its totient is φ = 40442112.

The previous prime is 85939549. The next prime is 85939559. The reversal of 85939556 is 65593958.

It can be written as a sum of positive squares in 2 ways, for example, as 80102500 + 5837056 = 8950^2 + 2416^2 .

It is not an unprimeable number, because it can be changed into a prime (85939559) 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, 631841 + ... + 631976.

It is an arithmetic number, because the mean of its divisors is an integer number (13270089).

Almost surely, 2^85939556 is an apocalyptic number.

It is an amenable number.

85939556 is a deficient number, since it is larger than the sum of its proper divisors (73301512).

85939556 is a wasteful number, since it uses less digits than its factorization.

85939556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1263838 (or 1263836 counting only the distinct ones).

The product of its digits is 1458000, while the sum is 50.

The square root of 85939556 is about 9270.3590005997. The cubic root of 85939556 is about 441.2970611101.

The spelling of 85939556 in words is "eighty-five million, nine hundred thirty-nine thousand, five hundred fifty-six".