85187950 has 24 divisors (see below), whose sum is σ = 158851440. Its totient is φ = 33988800.

The previous prime is 85187941. The next prime is 85187951. The reversal of 85187950 is 5978158.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 85187897 and 85187906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85187951) 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, 20010 + ... + 23890.

It is an arithmetic number, because the mean of its divisors is an integer number (6618810).

Almost surely, 2^85187950 is an apocalyptic number.

85187950 is a deficient number, since it is larger than the sum of its proper divisors (73663490).

85187950 is a wasteful number, since it uses less digits than its factorization.

85187950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4332 (or 4327 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 43.

The square root of 85187950 is about 9229.7318487592. The cubic root of 85187950 is about 440.0068008591.

It can be divided in two parts, 851879 and 50, that added together give a square (851929 = 923²).

The spelling of 85187950 in words is "eighty-five million, one hundred eighty-seven thousand, nine hundred fifty".