863676764 has 24 divisors (see below), whose sum is σ = 1541520288. Its totient is φ = 423259200.

The previous prime is 863676719. The next prime is 863676769. The reversal of 863676764 is 467676368.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (53).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (863676769) 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 7 ways as a sum of consecutive naturals, for example, 337289 + ... + 339839.

It is an arithmetic number, because the mean of its divisors is an integer number (64230012).

Almost surely, 2^863676764 is an apocalyptic number.

It is an amenable number.

863676764 is a deficient number, since it is larger than the sum of its proper divisors (677843524).

863676764 is a wasteful number, since it uses less digits than its factorization.

863676764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4205 (or 4203 counting only the distinct ones).

The product of its digits is 6096384, while the sum is 53.

The square root of 863676764 is about 29388.3780430292. The cubic root of 863676764 is about 952.3218420220.

The spelling of 863676764 in words is "eight hundred sixty-three million, six hundred seventy-six thousand, seven hundred sixty-four".