863495944 has 16 divisors (see below), whose sum is σ = 1620330300. Its totient is φ = 431407872.

The previous prime is 863495921. The next prime is 863495947. The reversal of 863495944 is 449594368.

It can be written as a sum of positive squares in 2 ways, for example, as 862127044 + 1368900 = 29362^2 + 1170^2 .

It is a super-2 number, since 2×863495944² = 1491250490608902272, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 863495891 and 863495900.

It is not an unprimeable number, because it can be changed into a prime (863495947) 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 in 3 ways as a sum of consecutive naturals, for example, 31557 + ... + 52180.

Almost surely, 2^863495944 is an apocalyptic number.

It is an amenable number.

863495944 is a deficient number, since it is larger than the sum of its proper divisors (756834356).

863495944 is a wasteful number, since it uses less digits than its factorization.

863495944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85032 (or 85028 counting only the distinct ones).

The product of its digits is 3732480, while the sum is 52.

The square root of 863495944 is about 29385.3014958159. The cubic root of 863495944 is about 952.2553777839.

The spelling of 863495944 in words is "eight hundred sixty-three million, four hundred ninety-five thousand, nine hundred forty-four".