386397649 has 9 divisors (see below), whose sum is σ = 424955881. Its totient is φ = 351074020.

The previous prime is 386397629. The next prime is 386397659. The reversal of 386397649 is 946793683.

The square root of 386397649 is 19657.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 386397649 - 2⁵ = 386397617 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 386397649.

It is not an unprimeable number, because it can be changed into a prime (386397629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 215334 + ... + 217120.

Almost surely, 2^386397649 is an apocalyptic number.

386397649 is the 19657-th square number.

386397649 is the 9829-th centered octagonal number.

It is an amenable number.

386397649 is a deficient number, since it is larger than the sum of its proper divisors (38558232).

386397649 is an frugal number, since it uses more digits than its factorization.

386397649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3596 (or 1798 counting only the distinct ones).

The product of its digits is 5878656, while the sum is 55.

The cubic root of 386397649 is about 728.3578832735.

The spelling of 386397649 in words is "three hundred eighty-six million, three hundred ninety-seven thousand, six hundred forty-nine".