78712316 has 6 divisors (see below), whose sum is σ = 137746560. Its totient is φ = 39356156.

The previous prime is 78712289. The next prime is 78712321. The reversal of 78712316 is 61321787.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9839036 + ... + 9839043.

It is an arithmetic number, because the mean of its divisors is an integer number (22957760).

Almost surely, 2^78712316 is an apocalyptic number.

It is an amenable number.

78712316 is a deficient number, since it is larger than the sum of its proper divisors (59034244).

78712316 is a wasteful number, since it uses less digits than its factorization.

78712316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19678083 (or 19678081 counting only the distinct ones).

The product of its digits is 14112, while the sum is 35.

The square root of 78712316 is about 8871.9961677178. The cubic root of 78712316 is about 428.5625627161.

The spelling of 78712316 in words is "seventy-eight million, seven hundred twelve thousand, three hundred sixteen".