863968971 has 8 divisors (see below), whose sum is σ = 1152096400. Its totient is φ = 575910432.

The previous prime is 863968927. The next prime is 863968997. The reversal of 863968971 is 179869368.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 863968971 - 2⁹ = 863968459 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (863968571) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32805 + ... + 52953.

It is an arithmetic number, because the mean of its divisors is an integer number (144012050).

Almost surely, 2^863968971 is an apocalyptic number.

863968971 is a deficient number, since it is larger than the sum of its proper divisors (288127429).

863968971 is a wasteful number, since it uses less digits than its factorization.

863968971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34445.

The product of its digits is 3919104, while the sum is 57.

The square root of 863968971 is about 29393.3490946506. The cubic root of 863968971 is about 952.4292293159.

The spelling of 863968971 in words is "eight hundred sixty-three million, nine hundred sixty-eight thousand, nine hundred seventy-one".