78663268 has 12 divisors (see below), whose sum is σ = 144906160. Its totient is φ = 37261512.

The previous prime is 78663259. The next prime is 78663281. The reversal of 78663268 is 86236687.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 517446 + ... + 517597.

Almost surely, 2^78663268 is an apocalyptic number.

It is an amenable number.

78663268 is a deficient number, since it is larger than the sum of its proper divisors (66242892).

78663268 is a wasteful number, since it uses less digits than its factorization.

78663268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1035066 (or 1035064 counting only the distinct ones).

The product of its digits is 580608, while the sum is 46.

The square root of 78663268 is about 8869.2315337914. The cubic root of 78663268 is about 428.4735275000.

The spelling of 78663268 in words is "seventy-eight million, six hundred sixty-three thousand, two hundred sixty-eight".