3897069189 has 24 divisors (see below), whose sum is σ = 5657756832. Its totient is φ = 2384890560.

The previous prime is 3897069181. The next prime is 3897069199. The reversal of 3897069189 is 9819607983.

It is not a de Polignac number, because 3897069189 - 2³ = 3897069181 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3897069181) 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 23 ways as a sum of consecutive naturals, for example, 70534 + ... + 113000.

It is an arithmetic number, because the mean of its divisors is an integer number (235739868).

Almost surely, 2^3897069189 is an apocalyptic number.

3897069189 is a gapful number since it is divisible by the number (39) formed by its first and last digit.

It is an amenable number.

3897069189 is a deficient number, since it is larger than the sum of its proper divisors (1760687643).

3897069189 is a wasteful number, since it uses less digits than its factorization.

3897069189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42677 (or 42664 counting only the distinct ones).

The product of its (nonzero) digits is 5878656, while the sum is 60.

The square root of 3897069189 is about 62426.5103061191. The cubic root of 3897069189 is about 1573.6665208074. Note that the first 3 decimals are identical.

The spelling of 3897069189 in words is "three billion, eight hundred ninety-seven million, sixty-nine thousand, one hundred eighty-nine".