386886661 has 8 divisors (see below), whose sum is σ = 446534784. Its totient is φ = 328333200.

The previous prime is 386886653. The next prime is 386886673. The reversal of 386886661 is 166688683.

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 386886661 - 2³ = 386886653 is a prime.

It is a super-4 number, since 4×386886661⁴ (a number of 35 digits) contains 4444 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 386886599 and 386886608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (386886691) 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, 272905 + ... + 274318.

It is an arithmetic number, because the mean of its divisors is an integer number (55816848).

Almost surely, 2^386886661 is an apocalyptic number.

It is an amenable number.

386886661 is a deficient number, since it is larger than the sum of its proper divisors (59648123).

386886661 is a wasteful number, since it uses less digits than its factorization.

386886661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 547331.

The product of its digits is 1990656, while the sum is 52.

The square root of 386886661 is about 19669.4346893855. The cubic root of 386886661 is about 728.6650155736.

The spelling of 386886661 in words is "three hundred eighty-six million, eight hundred eighty-six thousand, six hundred sixty-one".