3890000085 has 16 divisors (see below), whose sum is σ = 6229061376. Its totient is φ = 2072979648.

The previous prime is 3890000083. The next prime is 3890000111. The reversal of 3890000085 is 5800000983.

It is not a de Polignac number, because 3890000085 - 2¹ = 3890000083 is a prime.

It is a super-2 number, since 2×3890000085² = 30264201322600014450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3890000083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 86269 + ... + 123378.

It is an arithmetic number, because the mean of its divisors is an integer number (389316336).

Almost surely, 2^3890000085 is an apocalyptic number.

It is an amenable number.

3890000085 is a deficient number, since it is larger than the sum of its proper divisors (2339061291).

3890000085 is a wasteful number, since it uses less digits than its factorization.

3890000085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210892.

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 3890000085 is about 62369.8651994695. The cubic root of 3890000085 is about 1572.7144253621.

The spelling of 3890000085 in words is "three billion, eight hundred ninety million, eighty-five", and thus it is an aban number.