68549329 has 2 divisors, whose sum is σ = 68549330. Its totient is φ = 68549328.

The previous prime is 68549323. The next prime is 68549333. The reversal of 68549329 is 92394586.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 67650625 + 898704 = 8225^2 + 948^2 .

It is a cyclic number.

It is not a de Polignac number, because 68549329 - 2⁵ = 68549297 is a prime.

It is not a weakly prime, because it can be changed into another prime (68549323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34274664 + 34274665.

It is an arithmetic number, because the mean of its divisors is an integer number (34274665).

Almost surely, 2^68549329 is an apocalyptic number.

It is an amenable number.

68549329 is a deficient number, since it is larger than the sum of its proper divisors (1).

68549329 is an equidigital number, since it uses as much as digits as its factorization.

68549329 is an evil number, because the sum of its binary digits is even.

The product of its digits is 466560, while the sum is 46.

The square root of 68549329 is about 8279.4522161795. The cubic root of 68549329 is about 409.2616674330.

The spelling of 68549329 in words is "sixty-eight million, five hundred forty-nine thousand, three hundred twenty-nine".