387682873 has 4 divisors (see below), whose sum is σ = 388427508. Its totient is φ = 386938240.

The previous prime is 387682861. The next prime is 387682879. The reversal of 387682873 is 378286783.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 378286783 = 7 ⋅54040969.

It can be written as a sum of positive squares in 2 ways, for example, as 78907689 + 308775184 = 8883^2 + 17572^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-387682873 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 387682873.

It is not an unprimeable number, because it can be changed into a prime (387682879) 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, 371536 + ... + 372577.

It is an arithmetic number, because the mean of its divisors is an integer number (97106877).

Almost surely, 2^387682873 is an apocalyptic number.

It is an amenable number.

387682873 is a deficient number, since it is larger than the sum of its proper divisors (744635).

387682873 is an equidigital number, since it uses as much as digits as its factorization.

387682873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 744634.

The product of its digits is 2709504, while the sum is 52.

The square root of 387682873 is about 19689.6641159772. The cubic root of 387682873 is about 729.1645367898.

The spelling of 387682873 in words is "three hundred eighty-seven million, six hundred eighty-two thousand, eight hundred seventy-three".