863730836 has 6 divisors (see below), whose sum is σ = 1511528970. Its totient is φ = 431865416.

The previous prime is 863730827. The next prime is 863730859. The reversal of 863730836 is 638037368.

It can be written as a sum of positive squares in only one way, i.e., 818303236 + 45427600 = 28606^2 + 6740^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107966351 + ... + 107966358.

It is an arithmetic number, because the mean of its divisors is an integer number (251921495).

Almost surely, 2^863730836 is an apocalyptic number.

It is an amenable number.

863730836 is a deficient number, since it is larger than the sum of its proper divisors (647798134).

863730836 is a wasteful number, since it uses less digits than its factorization.

863730836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215932713 (or 215932711 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 44.

The square root of 863730836 is about 29389.2979841302. The cubic root of 863730836 is about 952.3417155342.

The spelling of 863730836 in words is "eight hundred sixty-three million, seven hundred thirty thousand, eight hundred thirty-six".