386645671 has 32 divisors (see below), whose sum is σ = 441262080. Its totient is φ = 336960000.

The previous prime is 386645669. The next prime is 386645681. The reversal of 386645671 is 176546683.

It is a cyclic number.

It is not a de Polignac number, because 386645671 - 2¹ = 386645669 is a prime.

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (386645681) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1540296 + ... + 1540546.

It is an arithmetic number, because the mean of its divisors is an integer number (13789440).

Almost surely, 2^386645671 is an apocalyptic number.

386645671 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

386645671 is a deficient number, since it is larger than the sum of its proper divisors (54616409).

386645671 is a wasteful number, since it uses less digits than its factorization.

386645671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 415.

The product of its digits is 725760, while the sum is 46.

The square root of 386645671 is about 19663.3077329324. The cubic root of 386645671 is about 728.5136900712.

The spelling of 386645671 in words is "three hundred eighty-six million, six hundred forty-five thousand, six hundred seventy-one".