763381 has 2 divisors, whose sum is σ = 763382. Its totient is φ = 763380.

The previous prime is 763369. The next prime is 763391. The reversal of 763381 is 183367.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 654481 + 108900 = 809^2 + 330^2 .

It is a cyclic number.

It is not a de Polignac number, because 763381 - 2⁵ = 763349 is a prime.

It is a super-2 number, since 2×763381² = 1165501102322, which contains 22 as substring.

It is a Chen prime.

763381 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (763391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 381690 + 381691.

It is an arithmetic number, because the mean of its divisors is an integer number (381691).

2⁷⁶³³⁸¹ is an apocalyptic number.

It is an amenable number.

763381 is a deficient number, since it is larger than the sum of its proper divisors (1).

763381 is an equidigital number, since it uses as much as digits as its factorization.

763381 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3024, while the sum is 28.

The square root of 763381 is about 873.7167733310. The cubic root of 763381 is about 91.3931786140.

It can be divided in two parts, 763 and 381, that multiplied together give a triangular number (290703 = T₇₆₂).

The spelling of 763381 in words is "seven hundred sixty-three thousand, three hundred eighty-one".