78816334 has 8 divisors (see below), whose sum is σ = 120974040. Its totient is φ = 38491656.

The previous prime is 78816329. The next prime is 78816337. The reversal of 78816334 is 43361887.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78816337) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 458149 + ... + 458320.

It is an arithmetic number, because the mean of its divisors is an integer number (15121755).

Almost surely, 2^78816334 is an apocalyptic number.

78816334 is a deficient number, since it is larger than the sum of its proper divisors (42157706).

78816334 is a wasteful number, since it uses less digits than its factorization.

78816334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 916514.

The product of its digits is 96768, while the sum is 40.

The square root of 78816334 is about 8877.8563854120. The cubic root of 78816334 is about 428.7512608372.

The spelling of 78816334 in words is "seventy-eight million, eight hundred sixteen thousand, three hundred thirty-four".