78671114 has 4 divisors (see below), whose sum is σ = 118006674. Its totient is φ = 39335556.

The previous prime is 78671111. The next prime is 78671119. The reversal of 78671114 is 41117687.

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., 68641225 + 10029889 = 8285^2 + 3167^2 .

It is not an unprimeable number, because it can be changed into a prime (78671111) by changing a digit.

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 as a sum of consecutive naturals, namely, 19667777 + ... + 19667780.

Almost surely, 2^78671114 is an apocalyptic number.

78671114 is a deficient number, since it is larger than the sum of its proper divisors (39335560).

78671114 is a wasteful number, since it uses less digits than its factorization.

78671114 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39335559.

The product of its digits is 9408, while the sum is 35.

The square root of 78671114 is about 8869.6738384227. The cubic root of 78671114 is about 428.4877725711.

The spelling of 78671114 in words is "seventy-eight million, six hundred seventy-one thousand, one hundred fourteen".