78694114 has 4 divisors (see below), whose sum is σ = 118041174. Its totient is φ = 39347056.

The previous prime is 78694111. The next prime is 78694117. The reversal of 78694114 is 41149687.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 41149687 = 19 ⋅2165773.

It is an interprime number because it is at equal distance from previous prime (78694111) and next prime (78694117).

It can be written as a sum of positive squares in only one way, i.e., 53363025 + 25331089 = 7305^2 + 5033^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (78694111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19673527 + ... + 19673530.

Almost surely, 2^78694114 is an apocalyptic number.

78694114 is a deficient number, since it is larger than the sum of its proper divisors (39347060).

78694114 is a wasteful number, since it uses less digits than its factorization.

78694114 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39347059.

The product of its digits is 48384, while the sum is 40.

The square root of 78694114 is about 8870.9702964219. The cubic root of 78694114 is about 428.5295255433.

The spelling of 78694114 in words is "seventy-eight million, six hundred ninety-four thousand, one hundred fourteen".