387869345 has 8 divisors (see below), whose sum is σ = 481493160. Its totient is φ = 299595520.

The previous prime is 387869327. The next prime is 387869351. The reversal of 387869345 is 543968783.

It can be written as a sum of positive squares in 4 ways, for example, as 24433249 + 363436096 = 4943^2 + 19064^2 .

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

It is not a de Polignac number, because 387869345 - 2⁶ = 387869281 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1337336 + ... + 1337625.

It is an arithmetic number, because the mean of its divisors is an integer number (60186645).

Almost surely, 2^387869345 is an apocalyptic number.

It is an amenable number.

387869345 is a deficient number, since it is larger than the sum of its proper divisors (93623815).

387869345 is a wasteful number, since it uses less digits than its factorization.

387869345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2674995.

The product of its digits is 4354560, while the sum is 53.

The square root of 387869345 is about 19694.3988230156. The cubic root of 387869345 is about 729.2814252613.

The spelling of 387869345 in words is "three hundred eighty-seven million, eight hundred sixty-nine thousand, three hundred forty-five".