90685896 has 32 divisors (see below), whose sum is σ = 259103040. Its totient is φ = 25910208.

The previous prime is 90685873. The next prime is 90685897. The reversal of 90685896 is 69858609.

It is not an unprimeable number, because it can be changed into a prime (90685897) 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, 269731 + ... + 270066.

It is an arithmetic number, because the mean of its divisors is an integer number (8096970).

Almost surely, 2^90685896 is an apocalyptic number.

It is an amenable number.

90685896 is an abundant number, since it is smaller than the sum of its proper divisors (168417144).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

90685896 is a wasteful number, since it uses less digits than its factorization.

90685896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 539813 (or 539809 counting only the distinct ones).

The product of its (nonzero) digits is 933120, while the sum is 51.

The square root of 90685896 is about 9522.9142598261. The cubic root of 90685896 is about 449.2760309504.

The spelling of 90685896 in words is "ninety million, six hundred eighty-five thousand, eight hundred ninety-six".