68097613 has 2 divisors, whose sum is σ = 68097614. Its totient is φ = 68097612.

The previous prime is 68097559. The next prime is 68097643. The reversal of 68097613 is 31679086.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 65318724 + 2778889 = 8082^2 + 1667^2 .

It is a cyclic number.

It is not a de Polignac number, because 68097613 - 2¹³ = 68089421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68097643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34048806 + 34048807.

It is an arithmetic number, because the mean of its divisors is an integer number (34048807).

Almost surely, 2^68097613 is an apocalyptic number.

It is an amenable number.

68097613 is a deficient number, since it is larger than the sum of its proper divisors (1).

68097613 is an equidigital number, since it uses as much as digits as its factorization.

68097613 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 68097613 is about 8252.1277862137. The cubic root of 68097613 is about 408.3607220094.

The spelling of 68097613 in words is "sixty-eight million, ninety-seven thousand, six hundred thirteen".