68697319 has 2 divisors, whose sum is σ = 68697320. Its totient is φ = 68697318.

The previous prime is 68697301. The next prime is 68697329. The reversal of 68697319 is 91379686.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 68697319 - 2¹⁵ = 68664551 is a prime.

It is a super-2 number, since 2×68697319² = 9438643275575522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68697329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34348659 + 34348660.

It is an arithmetic number, because the mean of its divisors is an integer number (34348660).

Almost surely, 2^68697319 is an apocalyptic number.

68697319 is a deficient number, since it is larger than the sum of its proper divisors (1).

68697319 is an equidigital number, since it uses as much as digits as its factorization.

68697319 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 489888, while the sum is 49.

The square root of 68697319 is about 8288.3845832587. The cubic root of 68697319 is about 409.5559718014. Note that the first 3 decimals are identical.

The spelling of 68697319 in words is "sixty-eight million, six hundred ninety-seven thousand, three hundred nineteen".