85117950 has 36 divisors (see below), whose sum is σ = 228684768. Its totient is φ = 22698000.

The previous prime is 85117933. The next prime is 85117957. The reversal of 85117950 is 5971158.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85117957) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 94126 + ... + 95025.

Almost surely, 2^85117950 is an apocalyptic number.

85117950 is an abundant number, since it is smaller than the sum of its proper divisors (143566818).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

85117950 is a wasteful number, since it uses less digits than its factorization.

85117950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189169 (or 189161 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 36.

The square root of 85117950 is about 9225.9389766029. The cubic root of 85117950 is about 439.8862481428.

It can be divided in two parts, 8511 and 7950, that added together give a palindrome (16461).

The spelling of 85117950 in words is "eighty-five million, one hundred seventeen thousand, nine hundred fifty".