863930642 has 4 divisors (see below), whose sum is σ = 1295895966. Its totient is φ = 431965320.

The previous prime is 863930611. The next prime is 863930657. The reversal of 863930642 is 246039368.

863930642 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 853165681 + 10764961 = 29209^2 + 3281^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 863930642.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 215982659 + ... + 215982662.

Almost surely, 2^863930642 is an apocalyptic number.

863930642 is a deficient number, since it is larger than the sum of its proper divisors (431965324).

863930642 is a wasteful number, since it uses less digits than its factorization.

863930642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 431965323.

The product of its (nonzero) digits is 186624, while the sum is 41.

The square root of 863930642 is about 29392.6970861811. The cubic root of 863930642 is about 952.4151446281.

The spelling of 863930642 in words is "eight hundred sixty-three million, nine hundred thirty thousand, six hundred forty-two".