68873737 has 2 divisors, whose sum is σ = 68873738. Its totient is φ = 68873736.

The previous prime is 68873719. The next prime is 68873743. The reversal of 68873737 is 73737886.

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., 35569296 + 33304441 = 5964^2 + 5771^2 .

It is a cyclic number.

It is not a de Polignac number, because 68873737 - 2¹⁵ = 68840969 is a prime.

It is not a weakly prime, because it can be changed into another prime (68873767) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34436868 + 34436869.

It is an arithmetic number, because the mean of its divisors is an integer number (34436869).

Almost surely, 2^68873737 is an apocalyptic number.

It is an amenable number.

68873737 is a deficient number, since it is larger than the sum of its proper divisors (1).

68873737 is an equidigital number, since it uses as much as digits as its factorization.

68873737 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1185408, while the sum is 49.

The square root of 68873737 is about 8299.0202433781. The cubic root of 68873737 is about 409.9062585609.

The spelling of 68873737 in words is "sixty-eight million, eight hundred seventy-three thousand, seven hundred thirty-seven".