387185355 has 12 divisors (see below), whose sum is σ = 671121360. Its totient is φ = 206498832.

The previous prime is 387185341. The next prime is 387185369. The reversal of 387185355 is 553581783.

It is an interprime number because it is at equal distance from previous prime (387185341) and next prime (387185369).

It is not a de Polignac number, because 387185355 - 2⁴ = 387185339 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 8604119 = 387185355 / (3 + 8 + 7 + 1 + 8 + 5 + 3 + 5 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 387185355.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4302015 + ... + 4302104.

It is an arithmetic number, because the mean of its divisors is an integer number (55926780).

Almost surely, 2^387185355 is an apocalyptic number.

387185355 is a deficient number, since it is larger than the sum of its proper divisors (283936005).

387185355 is a wasteful number, since it uses less digits than its factorization.

387185355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8604130 (or 8604127 counting only the distinct ones).

The product of its digits is 504000, while the sum is 45.

The square root of 387185355 is about 19677.0260710301. The cubic root of 387185355 is about 728.8524881185.

The spelling of 387185355 in words is "three hundred eighty-seven million, one hundred eighty-five thousand, three hundred fifty-five".