68203297 has 4 divisors (see below), whose sum is σ = 68806980. Its totient is φ = 67599616.

The previous prime is 68203271. The next prime is 68203309. The reversal of 68203297 is 79230286.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 10504081 + 57699216 = 3241^2 + 7596^2 .

It is a cyclic number.

It is not a de Polignac number, because 68203297 - 2⁷ = 68203169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68203207) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 301672 + ... + 301897.

It is an arithmetic number, because the mean of its divisors is an integer number (17201745).

Almost surely, 2^68203297 is an apocalyptic number.

It is an amenable number.

68203297 is a deficient number, since it is larger than the sum of its proper divisors (603683).

68203297 is a wasteful number, since it uses less digits than its factorization.

68203297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 603682.

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 68203297 is about 8258.5287430631. The cubic root of 68203297 is about 408.5718644463.

The spelling of 68203297 in words is "sixty-eight million, two hundred three thousand, two hundred ninety-seven".