3845605889 has 4 divisors (see below), whose sum is σ = 3860927280. Its totient is φ = 3830284500.

The previous prime is 3845605861. The next prime is 3845605891. The reversal of 3845605889 is 9885065483.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3845605889 - 2²⁴ = 3828828673 is a prime.

It is a super-2 number, since 2×3845605889² = 29577369307022960642, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3845605789) 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, 7660319 + ... + 7660820.

It is an arithmetic number, because the mean of its divisors is an integer number (965231820).

Almost surely, 2^3845605889 is an apocalyptic number.

It is an amenable number.

3845605889 is a deficient number, since it is larger than the sum of its proper divisors (15321391).

3845605889 is a wasteful number, since it uses less digits than its factorization.

3845605889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15321390.

The product of its (nonzero) digits is 8294400, while the sum is 56.

The square root of 3845605889 is about 62012.9493654350. The cubic root of 3845605889 is about 1566.7087107222.

The spelling of 3845605889 in words is "three billion, eight hundred forty-five million, six hundred five thousand, eight hundred eighty-nine".