863546868 has 36 divisors (see below), whose sum is σ = 2277763488. Its totient is φ = 275333520.

The previous prime is 863546851. The next prime is 863546897. The reversal of 863546868 is 868645368.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 520638 + ... + 522293.

It is an arithmetic number, because the mean of its divisors is an integer number (63271208).

Almost surely, 2^863546868 is an apocalyptic number.

It is an amenable number.

863546868 is an abundant number, since it is smaller than the sum of its proper divisors (1414216620).

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

863546868 is a wasteful number, since it uses less digits than its factorization.

863546868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1042964 (or 1042959 counting only the distinct ones).

The product of its digits is 6635520, while the sum is 54.

The square root of 863546868 is about 29386.1679706627. The cubic root of 863546868 is about 952.2740969221.

The spelling of 863546868 in words is "eight hundred sixty-three million, five hundred forty-six thousand, eight hundred sixty-eight".