387043 has 4 divisors (see below), whose sum is σ = 396088. Its totient is φ = 378000.

The previous prime is 387031. The next prime is 387047. The reversal of 387043 is 340783.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 340783 = 31 ⋅10993.

It is a cyclic number.

It is not a de Polignac number, because 387043 - 2¹⁷ = 255971 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 386999 and 387017.

It is not an unprimeable number, because it can be changed into a prime (387047) 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, 4458 + ... + 4543.

It is an arithmetic number, because the mean of its divisors is an integer number (99022).

2³⁸⁷⁰⁴³ is an apocalyptic number.

387043 is a deficient number, since it is larger than the sum of its proper divisors (9045).

387043 is an equidigital number, since it uses as much as digits as its factorization.

387043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9044.

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 387043 is about 622.1278003755. The cubic root of 387043 is about 72.8763152341.

The spelling of 387043 in words is "three hundred eighty-seven thousand, forty-three".