78580097 has 2 divisors, whose sum is σ = 78580098. Its totient is φ = 78580096.

The previous prime is 78580003. The next prime is 78580109. The reversal of 78580097 is 79008587.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 70291456 + 8288641 = 8384^2 + 2879^2 .

It is a cyclic number.

It is not a de Polignac number, because 78580097 - 2⁸ = 78579841 is a prime.

It is not a weakly prime, because it can be changed into another prime (78580297) 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, 39290048 + 39290049.

It is an arithmetic number, because the mean of its divisors is an integer number (39290049).

Almost surely, 2^78580097 is an apocalyptic number.

It is an amenable number.

78580097 is a deficient number, since it is larger than the sum of its proper divisors (1).

78580097 is an equidigital number, since it uses as much as digits as its factorization.

78580097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 141120, while the sum is 44.

The square root of 78580097 is about 8864.5415561099. The cubic root of 78580097 is about 428.3224653012.

The spelling of 78580097 in words is "seventy-eight million, five hundred eighty thousand, ninety-seven".