85628090 has 24 divisors (see below), whose sum is σ = 158236092. Its totient is φ = 33342720.

The previous prime is 85628087. The next prime is 85628113. The reversal of 85628090 is 9082658.

It can be written as a sum of positive squares in 6 ways, for example, as 47596201 + 38031889 = 6899^2 + 6167^2 .

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 187142 + ... + 187598.

Almost surely, 2^85628090 is an apocalyptic number.

85628090 is a deficient number, since it is larger than the sum of its proper divisors (72608002).

85628090 is an equidigital number, since it uses as much as digits as its factorization.

85628090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 962 (or 505 counting only the distinct ones).

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

The square root of 85628090 is about 9253.5447262117. The cubic root of 85628090 is about 440.7632928756.

The spelling of 85628090 in words is "eighty-five million, six hundred twenty-eight thousand, ninety".