383261969 has 2 divisors, whose sum is σ = 383261970. Its totient is φ = 383261968.

The previous prime is 383261953. The next prime is 383262001. The reversal of 383261969 is 969162383.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 266081344 + 117180625 = 16312^2 + 10825^2 .

It is a cyclic number.

It is not a de Polignac number, because 383261969 - 2⁴ = 383261953 is a prime.

It is a super-2 number, since 2×383261969² = 293779473763513922, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (383261929) by changing a digit.

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

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 191630984 + 191630985.

It is an arithmetic number, because the mean of its divisors is an integer number (191630985).

Almost surely, 2^383261969 is an apocalyptic number.

It is an amenable number.

383261969 is a deficient number, since it is larger than the sum of its proper divisors (1).

383261969 is an equidigital number, since it uses as much as digits as its factorization.

383261969 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 419904, while the sum is 47.

The square root of 383261969 is about 19577.0776419771. The cubic root of 383261969 is about 726.3822817789.

The spelling of 383261969 in words is "three hundred eighty-three million, two hundred sixty-one thousand, nine hundred sixty-nine".