387349 has 4 divisors (see below), whose sum is σ = 388620. Its totient is φ = 386080.

The previous prime is 387341. The next prime is 387371. The reversal of 387349 is 943783.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 119025 + 268324 = 345^2 + 518^2 .

It is a cyclic number.

It is not a de Polignac number, because 387349 - 2³ = 387341 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (387341) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 129 + ... + 889.

It is an arithmetic number, because the mean of its divisors is an integer number (97155).

2³⁸⁷³⁴⁹ is an apocalyptic number.

It is an amenable number.

387349 is a deficient number, since it is larger than the sum of its proper divisors (1271).

387349 is an equidigital number, since it uses as much as digits as its factorization.

387349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1270.

The product of its digits is 18144, while the sum is 34.

The square root of 387349 is about 622.3736819629. The cubic root of 387349 is about 72.8955157520.

The spelling of 387349 in words is "three hundred eighty-seven thousand, three hundred forty-nine".