863434408 has 16 divisors (see below), whose sum is σ = 1641742560. Its totient is φ = 425636400.

The previous prime is 863434399. The next prime is 863434433. The reversal of 863434408 is 804434368.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 759498 + ... + 760633.

It is an arithmetic number, because the mean of its divisors is an integer number (102608910).

Almost surely, 2^863434408 is an apocalyptic number.

It is an amenable number.

863434408 is a deficient number, since it is larger than the sum of its proper divisors (778308152).

863434408 is a wasteful number, since it uses less digits than its factorization.

863434408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1520208 (or 1520204 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 40.

The square root of 863434408 is about 29384.2544230750. The cubic root of 863434408 is about 952.2327568018.

Subtracting from 863434408 its sum of digits (40), we obtain a palindrome (863434368).

The spelling of 863434408 in words is "eight hundred sixty-three million, four hundred thirty-four thousand, four hundred eight".