386724649 has 2 divisors, whose sum is σ = 386724650. Its totient is φ = 386724648.

The previous prime is 386724617. The next prime is 386724673. The reversal of 386724649 is 946427683.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 220314649 + 166410000 = 14843^2 + 12900^2 .

It is a cyclic number.

It is not a de Polignac number, because 386724649 - 2⁵ = 386724617 is a prime.

It is not a weakly prime, because it can be changed into another prime (386724749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 193362324 + 193362325.

It is an arithmetic number, because the mean of its divisors is an integer number (193362325).

Almost surely, 2^386724649 is an apocalyptic number.

It is an amenable number.

386724649 is a deficient number, since it is larger than the sum of its proper divisors (1).

386724649 is an equidigital number, since it uses as much as digits as its factorization.

386724649 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1741824, while the sum is 49.

The square root of 386724649 is about 19665.3158886401. The cubic root of 386724649 is about 728.5632898653.

The spelling of 386724649 in words is "three hundred eighty-six million, seven hundred twenty-four thousand, six hundred forty-nine".