386873449 has 2 divisors, whose sum is σ = 386873450. Its totient is φ = 386873448.

The previous prime is 386873401. The next prime is 386873453. The reversal of 386873449 is 944378683.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 380523049 + 6350400 = 19507^2 + 2520^2 .

It is a cyclic number.

It is not a de Polignac number, because 386873449 - 2¹³ = 386865257 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 386873396 and 386873405.

It is not a weakly prime, because it can be changed into another prime (386873489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 193436724 + 193436725.

It is an arithmetic number, because the mean of its divisors is an integer number (193436725).

Almost surely, 2^386873449 is an apocalyptic number.

It is an amenable number.

386873449 is a deficient number, since it is larger than the sum of its proper divisors (1).

386873449 is an equidigital number, since it uses as much as digits as its factorization.

386873449 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3483648, while the sum is 52.

The square root of 386873449 is about 19669.0988354830. The cubic root of 386873449 is about 728.6567209551.

The spelling of 386873449 in words is "three hundred eighty-six million, eight hundred seventy-three thousand, four hundred forty-nine".