68970289 has 2 divisors, whose sum is σ = 68970290. Its totient is φ = 68970288.

The previous prime is 68970277. The next prime is 68970299. The reversal of 68970289 is 98207986.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 56776225 + 12194064 = 7535^2 + 3492^2 .

It is a cyclic number.

It is not a de Polignac number, because 68970289 - 2⁹ = 68969777 is a prime.

It is not a weakly prime, because it can be changed into another prime (68970259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34485144 + 34485145.

It is an arithmetic number, because the mean of its divisors is an integer number (34485145).

Almost surely, 2^68970289 is an apocalyptic number.

It is an amenable number.

68970289 is a deficient number, since it is larger than the sum of its proper divisors (1).

68970289 is an equidigital number, since it uses as much as digits as its factorization.

68970289 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 435456, while the sum is 49.

The square root of 68970289 is about 8304.8352783183. The cubic root of 68970289 is about 410.0977141681.

The spelling of 68970289 in words is "sixty-eight million, nine hundred seventy thousand, two hundred eighty-nine".