386598661 has 8 divisors (see below), whose sum is σ = 388468440. Its totient is φ = 384734208.

The previous prime is 386598637. The next prime is 386598679. The reversal of 386598661 is 166895683.

It can be written as a sum of positive squares in 4 ways, for example, as 156500100 + 230098561 = 12510^2 + 15169^2 .

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 386598661 - 2⁵ = 386598629 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 386598599 and 386598608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (386598361) 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, 226965 + ... + 228661.

It is an arithmetic number, because the mean of its divisors is an integer number (48558555).

Almost surely, 2^386598661 is an apocalyptic number.

It is an amenable number.

386598661 is a deficient number, since it is larger than the sum of its proper divisors (1869779).

386598661 is a wasteful number, since it uses less digits than its factorization.

386598661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2663.

The product of its digits is 1866240, while the sum is 52.

The square root of 386598661 is about 19662.1123229423. The cubic root of 386598661 is about 728.4841636260.

The spelling of 386598661 in words is "three hundred eighty-six million, five hundred ninety-eight thousand, six hundred sixty-one".