85581706 has 16 divisors (see below), whose sum is σ = 155342016. Its totient is φ = 34520256.

The previous prime is 85581701. The next prime is 85581709. The reversal of 85581706 is 60718558.

It is not an unprimeable number, because it can be changed into a prime (85581701) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 179556 + ... + 180031.

It is an arithmetic number, because the mean of its divisors is an integer number (9708876).

Almost surely, 2^85581706 is an apocalyptic number.

85581706 is a deficient number, since it is larger than the sum of its proper divisors (69760310).

85581706 is a wasteful number, since it uses less digits than its factorization.

85581706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 359613.

The product of its (nonzero) digits is 67200, while the sum is 40.

The square root of 85581706 is about 9251.0381039103. The cubic root of 85581706 is about 440.6836926058.

The spelling of 85581706 in words is "eighty-five million, five hundred eighty-one thousand, seven hundred six".