68443037 has 16 divisors (see below), whose sum is σ = 79338672. Its totient is φ = 58475520.

The previous prime is 68443021. The next prime is 68443043. The reversal of 68443037 is 73034486.

It can be written as a sum of positive squares in 8 ways, for example, as 116281 + 68326756 = 341^2 + 8266^2 .

It is a cyclic number.

It is not a de Polignac number, because 68443037 - 2⁴ = 68443021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 68442988 and 68443006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68443097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10943 + ... + 16019.

It is an arithmetic number, because the mean of its divisors is an integer number (4958667).

Almost surely, 2^68443037 is an apocalyptic number.

It is an amenable number.

68443037 is a deficient number, since it is larger than the sum of its proper divisors (10895635).

68443037 is a wasteful number, since it uses less digits than its factorization.

68443037 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5168.

The product of its (nonzero) digits is 48384, while the sum is 35.

The square root of 68443037 is about 8273.0307022276. The cubic root of 68443037 is about 409.0500254646.

The spelling of 68443037 in words is "sixty-eight million, four hundred forty-three thousand, thirty-seven".