78811196 has 12 divisors (see below), whose sum is σ = 138241152. Its totient is φ = 39313728.

The previous prime is 78811181. The next prime is 78811199. The reversal of 78811196 is 69111887.

It is a super-2 number, since 2×78811196² = 12422409229900832, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78811199) 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 in 3 ways as a sum of consecutive naturals, for example, 21020 + ... + 24483.

It is an arithmetic number, because the mean of its divisors is an integer number (11520096).

Almost surely, 2^78811196 is an apocalyptic number.

It is an amenable number.

78811196 is a deficient number, since it is larger than the sum of its proper divisors (59429956).

78811196 is a wasteful number, since it uses less digits than its factorization.

78811196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45940 (or 45938 counting only the distinct ones).

The product of its digits is 24192, while the sum is 41.

The square root of 78811196 is about 8877.5670090403. The cubic root of 78811196 is about 428.7419439366.

The spelling of 78811196 in words is "seventy-eight million, eight hundred eleven thousand, one hundred ninety-six".