78328114 has 4 divisors (see below), whose sum is σ = 117492174. Its totient is φ = 39164056.

The previous prime is 78328111. The next prime is 78328147. The reversal of 78328114 is 41182387.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 71656225 + 6671889 = 8465^2 + 2583^2 .

It is a super-2 number, since 2×78328114² = 12270586885593992, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 78328114.

It is not an unprimeable number, because it can be changed into a prime (78328111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19582027 + ... + 19582030.

Almost surely, 2^78328114 is an apocalyptic number.

78328114 is a deficient number, since it is larger than the sum of its proper divisors (39164060).

78328114 is a wasteful number, since it uses less digits than its factorization.

78328114 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39164059.

The product of its digits is 10752, while the sum is 34.

The square root of 78328114 is about 8850.3171694578. The cubic root of 78328114 is about 427.8641407961.

The spelling of 78328114 in words is "seventy-eight million, three hundred twenty-eight thousand, one hundred fourteen".