67804397 has 2 divisors, whose sum is σ = 67804398. Its totient is φ = 67804396.

The previous prime is 67804379. The next prime is 67804417. The reversal of 67804397 is 79340876.

Together with previous prime (67804379) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 38763076 + 29041321 = 6226^2 + 5389^2 .

It is a cyclic number.

It is not a de Polignac number, because 67804397 - 2⁶ = 67804333 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (67804097) 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, 33902198 + 33902199.

It is an arithmetic number, because the mean of its divisors is an integer number (33902199).

Almost surely, 2^67804397 is an apocalyptic number.

It is an amenable number.

67804397 is a deficient number, since it is larger than the sum of its proper divisors (1).

67804397 is an equidigital number, since it uses as much as digits as its factorization.

67804397 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 254016, while the sum is 44.

The square root of 67804397 is about 8234.3425359891. The cubic root of 67804397 is about 407.7737696380.

The spelling of 67804397 in words is "sixty-seven million, eight hundred four thousand, three hundred ninety-seven".