381061827 has 40 divisors (see below), whose sum is σ = 607981440. Its totient is φ = 237323520.

The previous prime is 381061819. The next prime is 381061841. The reversal of 381061827 is 728160183.

381061827 is a `hidden beast` number, since 3 + 8 + 10 + 618 + 27 = 666.

It is not a de Polignac number, because 381061827 - 2³ = 381061819 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 381061791 and 381061800.

It is not an unprimeable number, because it can be changed into a prime (381061847) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 70203 + ... + 75435.

It is an arithmetic number, because the mean of its divisors is an integer number (15199536).

Almost surely, 2^381061827 is an apocalyptic number.

381061827 is a deficient number, since it is larger than the sum of its proper divisors (226919613).

381061827 is a wasteful number, since it uses less digits than its factorization.

381061827 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5305 (or 5296 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 381061827 is about 19520.8049782789. The cubic root of 381061827 is about 724.9896642205.

The spelling of 381061827 in words is "three hundred eighty-one million, sixty-one thousand, eight hundred twenty-seven".