78696693 has 24 divisors (see below), whose sum is σ = 118317056. Its totient is φ = 50349600.

The previous prime is 78696661. The next prime is 78696713. The reversal of 78696693 is 39669687.

It is a happy number.

It is not a de Polignac number, because 78696693 - 2⁵ = 78696661 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78696623) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 34323 + ... + 36543.

Almost surely, 2^78696693 is an apocalyptic number.

It is an amenable number.

78696693 is a deficient number, since it is larger than the sum of its proper divisors (39620363).

78696693 is a wasteful number, since it uses less digits than its factorization.

78696693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2385 (or 2382 counting only the distinct ones).

The product of its digits is 2939328, while the sum is 54.

The square root of 78696693 is about 8871.1156570073. The cubic root of 78696693 is about 428.5342068150.

It can be divided in two parts, 786 and 96693, that added together give a palindrome (97479).

The spelling of 78696693 in words is "seventy-eight million, six hundred ninety-six thousand, six hundred ninety-three".