3898026889 has 4 divisors (see below), whose sum is σ = 3898449556. Its totient is φ = 3897604224.

The previous prime is 3898026859. The next prime is 3898026911. The reversal of 3898026889 is 9886208983.

3898026889 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3106167289 + 791859600 = 55733^2 + 28140^2 .

It is a cyclic number.

It is not a de Polignac number, because 3898026889 - 2¹¹ = 3898024841 is a prime.

It is a super-2 number, since 2×3898026889² = 30389227254734036642, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3898026859) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 197184 + ... + 216049.

It is an arithmetic number, because the mean of its divisors is an integer number (974612389).

Almost surely, 2^3898026889 is an apocalyptic number.

It is an amenable number.

3898026889 is a deficient number, since it is larger than the sum of its proper divisors (422667).

3898026889 is an equidigital number, since it uses as much as digits as its factorization.

3898026889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 422666.

The product of its (nonzero) digits is 11943936, while the sum is 61.

The square root of 3898026889 is about 62434.1804542992. The cubic root of 3898026889 is about 1573.7954191251.

The spelling of 3898026889 in words is "three billion, eight hundred ninety-eight million, twenty-six thousand, eight hundred eighty-nine".