78716093 has 2 divisors, whose sum is σ = 78716094. Its totient is φ = 78716092.

The previous prime is 78716087. The next prime is 78716111. The reversal of 78716093 is 39061787.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 61889689 + 16826404 = 7867^2 + 4102^2 .

It is a cyclic number.

It is not a de Polignac number, because 78716093 - 2²⁰ = 77667517 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 78716093.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (78716083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39358046 + 39358047.

It is an arithmetic number, because the mean of its divisors is an integer number (39358047).

Almost surely, 2^78716093 is an apocalyptic number.

It is an amenable number.

78716093 is a deficient number, since it is larger than the sum of its proper divisors (1).

78716093 is an equidigital number, since it uses as much as digits as its factorization.

78716093 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 63504, while the sum is 41.

The square root of 78716093 is about 8872.2090259416. The cubic root of 78716093 is about 428.5694174456.

The spelling of 78716093 in words is "seventy-eight million, seven hundred sixteen thousand, ninety-three".