78683093 has 2 divisors, whose sum is σ = 78683094. Its totient is φ = 78683092.

The previous prime is 78683083. The next prime is 78683113. The reversal of 78683093 is 39038687.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 74770609 + 3912484 = 8647^2 + 1978^2 .

It is a cyclic number.

It is not a de Polignac number, because 78683093 - 2⁸ = 78682837 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (78683083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39341546 + 39341547.

It is an arithmetic number, because the mean of its divisors is an integer number (39341547).

Almost surely, 2^78683093 is an apocalyptic number.

It is an amenable number.

78683093 is a deficient number, since it is larger than the sum of its proper divisors (1).

78683093 is an equidigital number, since it uses as much as digits as its factorization.

78683093 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 217728, while the sum is 44.

The square root of 78683093 is about 8870.3490912139. The cubic root of 78683093 is about 428.5095196236.

The spelling of 78683093 in words is "seventy-eight million, six hundred eighty-three thousand, ninety-three".