381701087 has 2 divisors, whose sum is σ = 381701088. Its totient is φ = 381701086.

The previous prime is 381701081. The next prime is 381701101. The reversal of 381701087 is 780107183.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 381701087 - 2⁸ = 381700831 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (381701081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 190850543 + 190850544.

It is an arithmetic number, because the mean of its divisors is an integer number (190850544).

Almost surely, 2^381701087 is an apocalyptic number.

381701087 is a deficient number, since it is larger than the sum of its proper divisors (1).

381701087 is an equidigital number, since it uses as much as digits as its factorization.

381701087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9408, while the sum is 35.

The square root of 381701087 is about 19537.1719294272. The cubic root of 381701087 is about 725.3948460395.

The spelling of 381701087 in words is "three hundred eighty-one million, seven hundred one thousand, eighty-seven".