78942008 has 16 divisors (see below), whose sum is σ = 148144680. Its totient is φ = 39436768.

The previous prime is 78942007. The next prime is 78942011. The reversal of 78942008 is 80024987.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78942007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7391 + ... + 14577.

Almost surely, 2^78942008 is an apocalyptic number.

It is an amenable number.

78942008 is a deficient number, since it is larger than the sum of its proper divisors (69202672).

78942008 is a wasteful number, since it uses less digits than its factorization.

78942008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8566 (or 8562 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 38.

The square root of 78942008 is about 8884.9315135233. The cubic root of 78942008 is about 428.9790235758.

The spelling of 78942008 in words is "seventy-eight million, nine hundred forty-two thousand, eight".