863871202 has 12 divisors (see below), whose sum is σ = 1310961510. Its totient is φ = 426888528.

The previous prime is 863871199. The next prime is 863871223. The reversal of 863871202 is 202178368.

It can be written as a sum of positive squares in only one way, i.e., 820192321 + 43678881 = 28639^2 + 6609^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 391033 + ... + 393235.

Almost surely, 2^863871202 is an apocalyptic number.

863871202 is a deficient number, since it is larger than the sum of its proper divisors (447090308).

863871202 is an frugal number, since it uses more digits than its factorization.

863871202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4497 (or 2294 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 37.

The square root of 863871202 is about 29391.6859332703. The cubic root of 863871202 is about 952.3933014955.

The spelling of 863871202 in words is "eight hundred sixty-three million, eight hundred seventy-one thousand, two hundred two".