381707 has 2 divisors, whose sum is σ = 381708. Its totient is φ = 381706.

The previous prime is 381697. The next prime is 381713. The reversal of 381707 is 707183.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 381707 - 2¹⁸ = 119563 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (381737) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 190853 + 190854.

It is an arithmetic number, because the mean of its divisors is an integer number (190854).

2³⁸¹⁷⁰⁷ is an apocalyptic number.

381707 is a deficient number, since it is larger than the sum of its proper divisors (1).

381707 is an equidigital number, since it uses as much as digits as its factorization.

381707 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1176, while the sum is 26.

The square root of 381707 is about 617.8244087117. The cubic root of 381707 is about 72.5398591761.

The spelling of 381707 in words is "three hundred eighty-one thousand, seven hundred seven".