387819345 has 16 divisors (see below), whose sum is σ = 622307520. Its totient is φ = 206238144.

The previous prime is 387819337. The next prime is 387819361. The reversal of 387819345 is 543918783.

It is not a de Polignac number, because 387819345 - 2³ = 387819337 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 387819294 and 387819303.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32050 + ... + 42459.

It is an arithmetic number, because the mean of its divisors is an integer number (38894220).

Almost surely, 2^387819345 is an apocalyptic number.

It is an amenable number.

387819345 is a deficient number, since it is larger than the sum of its proper divisors (234488175).

387819345 is a wasteful number, since it uses less digits than its factorization.

387819345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74864.

The product of its digits is 725760, while the sum is 48.

The square root of 387819345 is about 19693.1293856512. The cubic root of 387819345 is about 729.2500868405.

The spelling of 387819345 in words is "three hundred eighty-seven million, eight hundred nineteen thousand, three hundred forty-five".