863681676 has 192 divisors, whose sum is σ = 2482507776. Its totient is φ = 230169600.

The previous prime is 863681647. The next prime is 863681681. The reversal of 863681676 is 676186368.

It is a happy number.

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 3872901 + ... + 3873123.

It is an arithmetic number, because the mean of its divisors is an integer number (12929728).

Almost surely, 2^863681676 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 863681676, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1241253888).

863681676 is an abundant number, since it is smaller than the sum of its proper divisors (1618826100).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

863681676 is a wasteful number, since it uses less digits than its factorization.

863681676 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 352 (or 350 counting only the distinct ones).

The product of its digits is 1741824, while the sum is 51.

The square root of 863681676 is about 29388.4616133611. The cubic root of 863681676 is about 952.3236474027.

The spelling of 863681676 in words is "eight hundred sixty-three million, six hundred eighty-one thousand, six hundred seventy-six".