387547 has 4 divisors (see below), whose sum is σ = 388960. Its totient is φ = 386136.

The previous prime is 387529. The next prime is 387551. The reversal of 387547 is 745783.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 745783 = 131 ⋅5693.

It is a cyclic number.

It is not a de Polignac number, because 387547 - 2¹⁵ = 354779 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (387577) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 147 + ... + 892.

It is an arithmetic number, because the mean of its divisors is an integer number (97240).

2³⁸⁷⁵⁴⁷ is an apocalyptic number.

387547 is a deficient number, since it is larger than the sum of its proper divisors (1413).

387547 is a wasteful number, since it uses less digits than its factorization.

387547 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1412.

The product of its digits is 23520, while the sum is 34.

The square root of 387547 is about 622.5327300632. The cubic root of 387547 is about 72.9079342286.

The spelling of 387547 in words is "three hundred eighty-seven thousand, five hundred forty-seven".