381607 has 2 divisors, whose sum is σ = 381608. Its totient is φ = 381606.

The previous prime is 381569. The next prime is 381629. The reversal of 381607 is 706183.

381607 is nontrivially palindromic in base 14.

It is a strong prime.

It is an emirp because it is prime and its reverse (706183) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 381607 - 2¹⁵ = 348839 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (381637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 190803 + 190804.

It is an arithmetic number, because the mean of its divisors is an integer number (190804).

2³⁸¹⁶⁰⁷ is an apocalyptic number.

381607 is a deficient number, since it is larger than the sum of its proper divisors (1).

381607 is an equidigital number, since it uses as much as digits as its factorization.

381607 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 381607 is about 617.7434742674. The cubic root of 381607 is about 72.5335239334.

The spelling of 381607 in words is "three hundred eighty-one thousand, six hundred seven".