381327777 has 32 divisors (see below), whose sum is σ = 600307200. Its totient is φ = 238553424.

The previous prime is 381327773. The next prime is 381327829. The reversal of 381327777 is 777723183.

It is not a de Polignac number, because 381327777 - 2² = 381327773 is a prime.

It is not an unprimeable number, because it can be changed into a prime (381327773) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 51418 + ... + 58364.

It is an arithmetic number, because the mean of its divisors is an integer number (18759600).

Almost surely, 2^381327777 is an apocalyptic number.

It is an amenable number.

381327777 is a deficient number, since it is larger than the sum of its proper divisors (218979423).

381327777 is a wasteful number, since it uses less digits than its factorization.

381327777 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7082 (or 7076 counting only the distinct ones).

The product of its digits is 345744, while the sum is 45.

The square root of 381327777 is about 19527.6157530816. The cubic root of 381327777 is about 725.1582861688.

The spelling of 381327777 in words is "three hundred eighty-one million, three hundred twenty-seven thousand, seven hundred seventy-seven".