85208906 has 16 divisors (see below), whose sum is σ = 131188680. Its totient is φ = 41483520.

The previous prime is 85208899. The next prime is 85208909. The reversal of 85208906 is 60980258.

It can be written as a sum of positive squares in 4 ways, for example, as 6974881 + 78234025 = 2641^2 + 8845^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 85208906.

It is not an unprimeable number, because it can be changed into a prime (85208909) 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, 76280 + ... + 77388.

Almost surely, 2^85208906 is an apocalyptic number.

85208906 is a deficient number, since it is larger than the sum of its proper divisors (45979774).

85208906 is a wasteful number, since it uses less digits than its factorization.

85208906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2089.

The product of its (nonzero) digits is 34560, while the sum is 38.

The square root of 85208906 is about 9230.8670231999. The cubic root of 85208906 is about 440.0428780528.

The spelling of 85208906 in words is "eighty-five million, two hundred eight thousand, nine hundred six".