387205387 has 8 divisors (see below), whose sum is σ = 396269280. Its totient is φ = 378241920.

The previous prime is 387205367. The next prime is 387205397. The reversal of 387205387 is 783502783.

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

It is a cyclic number.

It is not a de Polignac number, because 387205387 - 2¹⁵ = 387172619 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (387205327) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17278 + ... + 32755.

It is an arithmetic number, because the mean of its divisors is an integer number (49533660).

Almost surely, 2^387205387 is an apocalyptic number.

387205387 is a deficient number, since it is larger than the sum of its proper divisors (9063893).

387205387 is a wasteful number, since it uses less digits than its factorization.

387205387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50213.

The product of its (nonzero) digits is 282240, while the sum is 43.

The square root of 387205387 is about 19677.5350844561. The cubic root of 387205387 is about 728.8650575689.

The spelling of 387205387 in words is "three hundred eighty-seven million, two hundred five thousand, three hundred eighty-seven".