386611971 has 8 divisors (see below), whose sum is σ = 516345600. Its totient is φ = 257309832.

The previous prime is 386611957. The next prime is 386611993. The reversal of 386611971 is 179116683.

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

It is not a de Polignac number, because 386611971 - 2⁷ = 386611843 is a prime.

It is a super-2 number, since 2×386611971² = 298937632241009682, which contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (386611921) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 105775 + ... + 109368.

It is an arithmetic number, because the mean of its divisors is an integer number (64543200).

Almost surely, 2^386611971 is an apocalyptic number.

386611971 is a deficient number, since it is larger than the sum of its proper divisors (129733629).

386611971 is a wasteful number, since it uses less digits than its factorization.

386611971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215745.

The product of its digits is 54432, while the sum is 42.

The square root of 386611971 is about 19662.4507882410. The cubic root of 386611971 is about 728.4925237282.

The spelling of 386611971 in words is "three hundred eighty-six million, six hundred eleven thousand, nine hundred seventy-one".