381933077 has 2 divisors, whose sum is σ = 381933078. Its totient is φ = 381933076.

The previous prime is 381933061. The next prime is 381933119. The reversal of 381933077 is 770339183.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 345439396 + 36493681 = 18586^2 + 6041^2 .

It is a cyclic number.

It is not a de Polignac number, because 381933077 - 2⁴ = 381933061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (381933047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 190966538 + 190966539.

It is an arithmetic number, because the mean of its divisors is an integer number (190966539).

Almost surely, 2^381933077 is an apocalyptic number.

It is an amenable number.

381933077 is a deficient number, since it is larger than the sum of its proper divisors (1).

381933077 is an equidigital number, since it uses as much as digits as its factorization.

381933077 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 95256, while the sum is 41.

The square root of 381933077 is about 19543.1081714245. The cubic root of 381933077 is about 725.5417762547.

The spelling of 381933077 in words is "three hundred eighty-one million, nine hundred thirty-three thousand, seventy-seven".