678796263 has 12 divisors (see below), whose sum is σ = 1023113520. Its totient is φ = 432855456.

The previous prime is 678796259. The next prime is 678796271. The reversal of 678796263 is 362697876.

678796263 is a `hidden beast` number, since 6 + 7 + 8 + 7 + 9 + 626 + 3 = 666.

It is not a de Polignac number, because 678796263 - 2² = 678796259 is a prime.

It is a super-3 number, since 3×678796263³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (678796273) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1639398 + ... + 1639811.

It is an arithmetic number, because the mean of its divisors is an integer number (85259460).

Almost surely, 2^678796263 is an apocalyptic number.

678796263 is a deficient number, since it is larger than the sum of its proper divisors (344317257).

678796263 is a wasteful number, since it uses less digits than its factorization.

678796263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3279238 (or 3279235 counting only the distinct ones).

The product of its digits is 4572288, while the sum is 54.

The square root of 678796263 is about 26053.7187940609. The cubic root of 678796263 is about 878.8467429964.

The spelling of 678796263 in words is "six hundred seventy-eight million, seven hundred ninety-six thousand, two hundred sixty-three".