381794087 has 2 divisors, whose sum is σ = 381794088. Its totient is φ = 381794086.

The previous prime is 381794029. The next prime is 381794093. The reversal of 381794087 is 780497183.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 381794087 - 2¹⁶ = 381728551 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (381794027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 190897043 + 190897044.

It is an arithmetic number, because the mean of its divisors is an integer number (190897044).

Almost surely, 2^381794087 is an apocalyptic number.

381794087 is a deficient number, since it is larger than the sum of its proper divisors (1).

381794087 is an equidigital number, since it uses as much as digits as its factorization.

381794087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 338688, while the sum is 47.

The square root of 381794087 is about 19539.5518628243. The cubic root of 381794087 is about 725.4537544758.

The spelling of 381794087 in words is "three hundred eighty-one million, seven hundred ninety-four thousand, eighty-seven".