3891466385 has 8 divisors (see below), whose sum is σ = 4679848320. Its totient is φ = 3106447344.

The previous prime is 3891466357. The next prime is 3891466409. The reversal of 3891466385 is 5836641983.

3891466385 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3891466385 - 2⁸ = 3891466129 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 838175 + ... + 842804.

It is an arithmetic number, because the mean of its divisors is an integer number (584981040).

Almost surely, 2^3891466385 is an apocalyptic number.

It is an amenable number.

3891466385 is a deficient number, since it is larger than the sum of its proper divisors (788381935).

3891466385 is a wasteful number, since it uses less digits than its factorization.

3891466385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1681447.

The product of its digits is 3732480, while the sum is 53.

The square root of 3891466385 is about 62381.6189674491. The cubic root of 3891466385 is about 1572.9120073177.

The spelling of 3891466385 in words is "three billion, eight hundred ninety-one million, four hundred sixty-six thousand, three hundred eighty-five".