381262823 has 2 divisors, whose sum is σ = 381262824. Its totient is φ = 381262822.

The previous prime is 381262799. The next prime is 381262853. The reversal of 381262823 is 328262183.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 381262823 - 2¹⁰ = 381261799 is a prime.

It is a super-2 number, since 2×381262823² = 290722680403858658, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (381262853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 190631411 + 190631412.

It is an arithmetic number, because the mean of its divisors is an integer number (190631412).

Almost surely, 2^381262823 is an apocalyptic number.

381262823 is a deficient number, since it is larger than the sum of its proper divisors (1).

381262823 is an equidigital number, since it uses as much as digits as its factorization.

381262823 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27648, while the sum is 35.

The square root of 381262823 is about 19525.9525503879. The cubic root of 381262823 is about 725.1171102140.

The spelling of 381262823 in words is "three hundred eighty-one million, two hundred sixty-two thousand, eight hundred twenty-three".