381807463 has 2 divisors, whose sum is σ = 381807464. Its totient is φ = 381807462.

The previous prime is 381807431. The next prime is 381807493. The reversal of 381807463 is 364708183.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 381807463 - 2⁵ = 381807431 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (381807493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 190903731 + 190903732.

It is an arithmetic number, because the mean of its divisors is an integer number (190903732).

Almost surely, 2^381807463 is an apocalyptic number.

381807463 is a deficient number, since it is larger than the sum of its proper divisors (1).

381807463 is an equidigital number, since it uses as much as digits as its factorization.

381807463 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96768, while the sum is 40.

The square root of 381807463 is about 19539.8941399384. The cubic root of 381807463 is about 725.4622263689.

The spelling of 381807463 in words is "three hundred eighty-one million, eight hundred seven thousand, four hundred sixty-three".