863865434 has 8 divisors (see below), whose sum is σ = 1295937588. Its totient is φ = 431886240.

The previous prime is 863865403. The next prime is 863865461. The reversal of 863865434 is 434568368.

It can be written as a sum of positive squares in 2 ways, for example, as 801059809 + 62805625 = 28303^2 + 7925^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8864 + ... + 42500.

Almost surely, 2^863865434 is an apocalyptic number.

863865434 is a deficient number, since it is larger than the sum of its proper divisors (432072154).

863865434 is a wasteful number, since it uses less digits than its factorization.

863865434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46480.

The product of its digits is 1658880, while the sum is 47.

The square root of 863865434 is about 29391.5878101201. The cubic root of 863865434 is about 952.3911818058.

The spelling of 863865434 in words is "eight hundred sixty-three million, eight hundred sixty-five thousand, four hundred thirty-four".