78814016 has 14 divisors (see below), whose sum is σ = 156396690. Its totient is φ = 39406976.

The previous prime is 78814007. The next prime is 78814019. The reversal of 78814016 is 61041887.

It can be written as a sum of positive squares in only one way, i.e., 67897600 + 10916416 = 8240^2 + 3304^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78814019) 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, 615671 + ... + 615798.

Almost surely, 2^78814016 is an apocalyptic number.

It is an amenable number.

78814016 is a deficient number, since it is larger than the sum of its proper divisors (77582674).

78814016 is a wasteful number, since it uses less digits than its factorization.

78814016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1231481 (or 1231471 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 35.

The square root of 78814016 is about 8877.7258349197. The cubic root of 78814016 is about 428.7470575834.

The spelling of 78814016 in words is "seventy-eight million, eight hundred fourteen thousand, sixteen".