387147377 has 4 divisors (see below), whose sum is σ = 387187620. Its totient is φ = 387107136.

The previous prime is 387147367. The next prime is 387147433. The reversal of 387147377 is 773741783.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 773741783 = 2333 ⋅331651.

It can be written as a sum of positive squares in 2 ways, for example, as 313856656 + 73290721 = 17716^2 + 8561^2 .

It is a cyclic number.

It is not a de Polignac number, because 387147377 - 2²⁸ = 118711921 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 9.

It is not an unprimeable number, because it can be changed into a prime (387147337) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3749 + ... + 28077.

It is an arithmetic number, because the mean of its divisors is an integer number (96796905).

Almost surely, 2^387147377 is an apocalyptic number.

It is an amenable number.

387147377 is a deficient number, since it is larger than the sum of its proper divisors (40243).

387147377 is a wasteful number, since it uses less digits than its factorization.

387147377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40242.

The product of its digits is 691488, while the sum is 47.

The square root of 387147377 is about 19676.0610133228. The cubic root of 387147377 is about 728.8286569272.

The spelling of 387147377 in words is "three hundred eighty-seven million, one hundred forty-seven thousand, three hundred seventy-seven".