381677895 has 48 divisors (see below), whose sum is σ = 681288192. Its totient is φ = 197588160.

The previous prime is 381677861. The next prime is 381677899. The reversal of 381677895 is 598776183.

It is not a de Polignac number, because 381677895 - 2⁹ = 381677383 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381677899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 213174 + ... + 214956.

It is an arithmetic number, because the mean of its divisors is an integer number (14193504).

Almost surely, 2^381677895 is an apocalyptic number.

381677895 is a deficient number, since it is larger than the sum of its proper divisors (299610297).

381677895 is a wasteful number, since it uses less digits than its factorization.

381677895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1932 (or 1929 counting only the distinct ones).

The product of its digits is 2540160, while the sum is 54.

The square root of 381677895 is about 19536.5783851728. The cubic root of 381677895 is about 725.3801541785.

The spelling of 381677895 in words is "three hundred eighty-one million, six hundred seventy-seven thousand, eight hundred ninety-five".