85781003 has 8 divisors (see below), whose sum is σ = 106947840. Its totient is φ = 66842280.

The previous prime is 85780957. The next prime is 85781021. The reversal of 85781003 is 30018758.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 85781003 - 2¹⁴ = 85764619 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85781023) 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 in 7 ways as a sum of consecutive naturals, for example, 556943 + ... + 557096.

It is an arithmetic number, because the mean of its divisors is an integer number (13368480).

Almost surely, 2^85781003 is an apocalyptic number.

85781003 is a deficient number, since it is larger than the sum of its proper divisors (21166837).

85781003 is a wasteful number, since it uses less digits than its factorization.

85781003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1114057.

The product of its (nonzero) digits is 6720, while the sum is 32.

The square root of 85781003 is about 9261.8034420948. The cubic root of 85781003 is about 441.0255057295.

The spelling of 85781003 in words is "eighty-five million, seven hundred eighty-one thousand, three".