67568397 has 12 divisors (see below), whose sum is σ = 97555104. Its totient is φ = 41580240.

The previous prime is 67568377. The next prime is 67568441. The reversal of 67568397 is 79386576.

It is not a de Polignac number, because 67568397 - 2⁸ = 67568141 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67568377) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 66129 + ... + 67142.

It is an arithmetic number, because the mean of its divisors is an integer number (8129592).

Almost surely, 2^67568397 is an apocalyptic number.

It is an amenable number.

67568397 is a deficient number, since it is larger than the sum of its proper divisors (29986707).

67568397 is a wasteful number, since it uses less digits than its factorization.

67568397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133300 (or 133287 counting only the distinct ones).

The product of its digits is 1905120, while the sum is 51.

The square root of 67568397 is about 8219.9998175182. Note that the first 3 decimals coincide. The cubic root of 67568397 is about 407.3001205252.

The spelling of 67568397 in words is "sixty-seven million, five hundred sixty-eight thousand, three hundred ninety-seven".