863967960 has 48 divisors (see below), whose sum is σ = 2807897040. Its totient is φ = 230391360.

The previous prime is 863967941. The next prime is 863968003. The reversal of 863967960 is 69769368.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 863967897 and 863967906.

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, 1199596 + ... + 1200315.

It is an arithmetic number, because the mean of its divisors is an integer number (58497855).

Almost surely, 2^863967960 is an apocalyptic number.

It is an amenable number.

863967960 is an abundant number, since it is smaller than the sum of its proper divisors (1943929080).

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

863967960 is a wasteful number, since it uses less digits than its factorization.

863967960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2399928 (or 2399921 counting only the distinct ones).

The product of its (nonzero) digits is 2939328, while the sum is 54.

The square root of 863967960 is about 29393.3318968776. The cubic root of 863967960 is about 952.4288578109.

The spelling of 863967960 in words is "eight hundred sixty-three million, nine hundred sixty-seven thousand, nine hundred sixty".