85081887 has 32 divisors (see below), whose sum is σ = 141957120. Its totient is φ = 49896000.

The previous prime is 85081879. The next prime is 85081897. The reversal of 85081887 is 78818058.

It is a happy number.

It is not a de Polignac number, because 85081887 - 2³ = 85081879 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85081817) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4587 + ... + 13827.

It is an arithmetic number, because the mean of its divisors is an integer number (4436160).

Almost surely, 2^85081887 is an apocalyptic number.

85081887 is a deficient number, since it is larger than the sum of its proper divisors (56875233).

85081887 is a wasteful number, since it uses less digits than its factorization.

85081887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9292 (or 9286 counting only the distinct ones).

The product of its (nonzero) digits is 143360, while the sum is 45.

The square root of 85081887 is about 9223.9843343319. The cubic root of 85081887 is about 439.8241153076.

The spelling of 85081887 in words is "eighty-five million, eighty-one thousand, eight hundred eighty-seven".