78704845 has 8 divisors (see below), whose sum is σ = 94641120. Its totient is φ = 62833680.

The previous prime is 78704831. The next prime is 78704861. The reversal of 78704845 is 54840787.

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

It is not a de Polignac number, because 78704845 - 2¹¹ = 78702797 is a prime.

It is a congruent 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, 13575 + ... + 18484.

It is an arithmetic number, because the mean of its divisors is an integer number (11830140).

Almost surely, 2^78704845 is an apocalyptic number.

It is an amenable number.

78704845 is a deficient number, since it is larger than the sum of its proper divisors (15936275).

78704845 is a wasteful number, since it uses less digits than its factorization.

78704845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32555.

The product of its (nonzero) digits is 250880, while the sum is 43.

The square root of 78704845 is about 8871.5751138115. The cubic root of 78704845 is about 428.5490032446.

The spelling of 78704845 in words is "seventy-eight million, seven hundred four thousand, eight hundred forty-five".