863416972 has 12 divisors (see below), whose sum is σ = 1648341576. Its totient is φ = 392462240.

The previous prime is 863416969. The next prime is 863416979. The reversal of 863416972 is 279614368.

It is not an unprimeable number, because it can be changed into a prime (863416979) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9811513 + ... + 9811600.

It is an arithmetic number, because the mean of its divisors is an integer number (137361798).

Almost surely, 2^863416972 is an apocalyptic number.

It is an amenable number.

863416972 is a deficient number, since it is larger than the sum of its proper divisors (784924604).

863416972 is a wasteful number, since it uses less digits than its factorization.

863416972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19623128 (or 19623126 counting only the distinct ones).

The product of its digits is 435456, while the sum is 46.

The square root of 863416972 is about 29383.9577320687. The cubic root of 863416972 is about 952.2263470340.

The spelling of 863416972 in words is "eight hundred sixty-three million, four hundred sixteen thousand, nine hundred seventy-two".