387245 has 8 divisors (see below), whose sum is σ = 476280. Its totient is φ = 302080.

The previous prime is 387227. The next prime is 387253. The reversal of 387245 is 542783.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 361 + 386884 = 19^2 + 622^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 387245 - 2⁸ = 386989 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 740 + ... + 1149.

It is an arithmetic number, because the mean of its divisors is an integer number (59535).

2³⁸⁷²⁴⁵ is an apocalyptic number.

It is an amenable number.

387245 is a deficient number, since it is larger than the sum of its proper divisors (89035).

387245 is a wasteful number, since it uses less digits than its factorization.

387245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1935.

The product of its digits is 6720, while the sum is 29.

The square root of 387245 is about 622.2901252631. The cubic root of 387245 is about 72.8889912205. Note that the first 3 decimals are identical.

The spelling of 387245 in words is "three hundred eighty-seven thousand, two hundred forty-five".