68682445 has 12 divisors (see below), whose sum is σ = 89247636. Its totient is φ = 50718720.

The previous prime is 68682443. The next prime is 68682451. The reversal of 68682445 is 54428686.

It can be written as a sum of positive squares in 6 ways, for example, as 1671849 + 67010596 = 1293^2 + 8186^2 .

It is not a de Polignac number, because 68682445 - 2¹ = 68682443 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68682443) 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, 39796 + ... + 41485.

It is an arithmetic number, because the mean of its divisors is an integer number (7437303).

Almost surely, 2^68682445 is an apocalyptic number.

68682445 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

68682445 is a deficient number, since it is larger than the sum of its proper divisors (20565191).

68682445 is a wasteful number, since it uses less digits than its factorization.

68682445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81312 (or 81299 counting only the distinct ones).

The product of its digits is 368640, while the sum is 43.

The square root of 68682445 is about 8287.4872548922. The cubic root of 68682445 is about 409.5264113309.

The spelling of 68682445 in words is "sixty-eight million, six hundred eighty-two thousand, four hundred forty-five".