78954668 has 12 divisors (see below), whose sum is σ = 148799280. Its totient is φ = 36440592.

The previous prime is 78954611. The next prime is 78954677. The reversal of 78954668 is 86645987.

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, 759128 + ... + 759231.

It is an arithmetic number, because the mean of its divisors is an integer number (12399940).

Almost surely, 2^78954668 is an apocalyptic number.

It is an amenable number.

78954668 is a deficient number, since it is larger than the sum of its proper divisors (69844612).

78954668 is a wasteful number, since it uses less digits than its factorization.

78954668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1518376 (or 1518374 counting only the distinct ones).

The product of its digits is 2903040, while the sum is 53.

The square root of 78954668 is about 8885.6439271445. The cubic root of 78954668 is about 429.0019542658.

The spelling of 78954668 in words is "seventy-eight million, nine hundred fifty-four thousand, six hundred sixty-eight".