387449 has 2 divisors, whose sum is σ = 387450. Its totient is φ = 387448.

The previous prime is 387437. The next prime is 387463. The reversal of 387449 is 944783.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 243049 + 144400 = 493^2 + 380^2 .

It is a cyclic number.

It is not a de Polignac number, because 387449 - 2⁴ = 387433 is a prime.

It is a Chen prime.

It is a plaindrome in base 15.

It is not a weakly prime, because it can be changed into another prime (387749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 193724 + 193725.

It is an arithmetic number, because the mean of its divisors is an integer number (193725).

2³⁸⁷⁴⁴⁹ is an apocalyptic number.

It is an amenable number.

387449 is a deficient number, since it is larger than the sum of its proper divisors (1).

387449 is an equidigital number, since it uses as much as digits as its factorization.

387449 is an evil number, because the sum of its binary digits is even.

The product of its digits is 24192, while the sum is 35.

The square root of 387449 is about 622.4540143657. The cubic root of 387449 is about 72.9017882387.

The spelling of 387449 in words is "three hundred eighty-seven thousand, four hundred forty-nine".