85781096 has 32 divisors (see below), whose sum is σ = 166212000. Its totient is φ = 41472576.

The previous prime is 85781071. The next prime is 85781107. The reversal of 85781096 is 69018758.

It is a happy number.

It is a super-2 number, since 2×85781096² = 14716792861922432, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52175 + ... + 53793.

It is an arithmetic number, because the mean of its divisors is an integer number (5194125).

Almost surely, 2^85781096 is an apocalyptic number.

It is an amenable number.

85781096 is a deficient number, since it is larger than the sum of its proper divisors (80430904).

85781096 is a wasteful number, since it uses less digits than its factorization.

85781096 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1841 (or 1837 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 44.

The square root of 85781096 is about 9261.8084627140. The cubic root of 85781096 is about 441.0256651096.

The spelling of 85781096 in words is "eighty-five million, seven hundred eighty-one thousand, ninety-six".