863331449 has 2 divisors, whose sum is σ = 863331450. Its totient is φ = 863331448.

The previous prime is 863331437. The next prime is 863331461. The reversal of 863331449 is 944133368.

It is a balanced prime because it is at equal distance from previous prime (863331437) and next prime (863331461).

It can be written as a sum of positive squares in only one way, i.e., 491420224 + 371911225 = 22168^2 + 19285^2 .

It is a cyclic number.

It is not a de Polignac number, because 863331449 - 2⁴ = 863331433 is a prime.

It is not a weakly prime, because it can be changed into another prime (863331409) 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, 431665724 + 431665725.

It is an arithmetic number, because the mean of its divisors is an integer number (431665725).

Almost surely, 2^863331449 is an apocalyptic number.

It is an amenable number.

863331449 is a deficient number, since it is larger than the sum of its proper divisors (1).

863331449 is an equidigital number, since it uses as much as digits as its factorization.

863331449 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 186624, while the sum is 41.

The square root of 863331449 is about 29382.5024291669. The cubic root of 863331449 is about 952.1949060866.

The spelling of 863331449 in words is "eight hundred sixty-three million, three hundred thirty-one thousand, four hundred forty-nine".