68035397 has 2 divisors, whose sum is σ = 68035398. Its totient is φ = 68035396.

The previous prime is 68035393. The next prime is 68035399. The reversal of 68035397 is 79353086.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 52911076 + 15124321 = 7274^2 + 3889^2 .

It is a cyclic number.

It is not a de Polignac number, because 68035397 - 2² = 68035393 is a prime.

Together with 68035399, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68035391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34017698 + 34017699.

It is an arithmetic number, because the mean of its divisors is an integer number (34017699).

Almost surely, 2^68035397 is an apocalyptic number.

It is an amenable number.

68035397 is a deficient number, since it is larger than the sum of its proper divisors (1).

68035397 is an equidigital number, since it uses as much as digits as its factorization.

68035397 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 136080, while the sum is 41.

The square root of 68035397 is about 8248.3572303823. The cubic root of 68035397 is about 408.2363206250.

The spelling of 68035397 in words is "sixty-eight million, thirty-five thousand, three hundred ninety-seven".