85781104 has 10 divisors (see below), whose sum is σ = 166200920. Its totient is φ = 42890544.

The previous prime is 85781071. The next prime is 85781107. The reversal of 85781104 is 40118758.

It is a self number, because there is not a number n which added to its sum of digits gives 85781104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85781107) by changing a digit.

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 as a sum of consecutive naturals, namely, 2680644 + ... + 2680675.

It is an arithmetic number, because the mean of its divisors is an integer number (16620092).

Almost surely, 2^85781104 is an apocalyptic number.

It is an amenable number.

85781104 is a deficient number, since it is larger than the sum of its proper divisors (80419816).

85781104 is a wasteful number, since it uses less digits than its factorization.

85781104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5361327 (or 5361321 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 34.

The square root of 85781104 is about 9261.8088945951. The cubic root of 85781104 is about 441.0256788197.

The spelling of 85781104 in words is "eighty-five million, seven hundred eighty-one thousand, one hundred four".