78674785 has 8 divisors (see below), whose sum is σ = 107896896. Its totient is φ = 53948400.

The previous prime is 78674779. The next prime is 78674803. The reversal of 78674785 is 58747687.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 78674785 - 2⁵ = 78674753 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1123891 + ... + 1123960.

It is an arithmetic number, because the mean of its divisors is an integer number (13487112).

Almost surely, 2^78674785 is an apocalyptic number.

It is an amenable number.

78674785 is a deficient number, since it is larger than the sum of its proper divisors (29222111).

78674785 is a wasteful number, since it uses less digits than its factorization.

78674785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2247863.

The product of its digits is 2634240, while the sum is 52.

The square root of 78674785 is about 8869.8807771018. The cubic root of 78674785 is about 428.4944372543.

The spelling of 78674785 in words is "seventy-eight million, six hundred seventy-four thousand, seven hundred eighty-five".