68812337 has 12 divisors (see below), whose sum is σ = 75846708. Its totient is φ = 62383200.

The previous prime is 68812333. The next prime is 68812339. The reversal of 68812337 is 73321886.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 20939776 + 47872561 = 4576^2 + 6919^2 .

It is not a de Polignac number, because 68812337 - 2² = 68812333 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 68812337.

It is not an unprimeable number, because it can be changed into a prime (68812333) 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, 66887 + ... + 67907.

It is an arithmetic number, because the mean of its divisors is an integer number (6320559).

Almost surely, 2^68812337 is an apocalyptic number.

It is an amenable number.

68812337 is a deficient number, since it is larger than the sum of its proper divisors (7034371).

68812337 is a wasteful number, since it uses less digits than its factorization.

68812337 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1600 (or 1589 counting only the distinct ones).

The product of its digits is 48384, while the sum is 38.

The square root of 68812337 is about 8295.3201867077. The cubic root of 68812337 is about 409.7844137275.

The spelling of 68812337 in words is "sixty-eight million, eight hundred twelve thousand, three hundred thirty-seven".