387223684 has 9 divisors (see below), whose sum is σ = 677710327. Its totient is φ = 193592164.

The previous prime is 387223679. The next prime is 387223693. The reversal of 387223684 is 486322783.

The square root of 387223684 is 19678.

It is a perfect power (a square), and thus also a powerful number.

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 387223684.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 34437 + ... + 44275.

Almost surely, 2^387223684 is an apocalyptic number.

387223684 is the 19678-th square number.

It is an amenable number.

387223684 is a deficient number, since it is larger than the sum of its proper divisors (290486643).

387223684 is an frugal number, since it uses more digits than its factorization.

387223684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19682 (or 9841 counting only the distinct ones).

The product of its digits is 387072, while the sum is 43.

The cubic root of 387223684 is about 728.8765379824.

Subtracting 387223684 from its reverse (486322783), we obtain a palindrome (99099099).

It can be divided in two parts, 3872 and 23684, that added together give a square (27556 = 166²).

The spelling of 387223684 in words is "three hundred eighty-seven million, two hundred twenty-three thousand, six hundred eighty-four".