72868337 has 2 divisors, whose sum is σ = 72868338. Its totient is φ = 72868336.

The previous prime is 72868333. The next prime is 72868339. The reversal of 72868337 is 73386827.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 72863296 + 5041 = 8536^2 + 71^2 .

It is a cyclic number.

It is not a de Polignac number, because 72868337 - 2² = 72868333 is a prime.

Together with 72868339, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (72868333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36434168 + 36434169.

It is an arithmetic number, because the mean of its divisors is an integer number (36434169).

Almost surely, 2^72868337 is an apocalyptic number.

It is an amenable number.

72868337 is a deficient number, since it is larger than the sum of its proper divisors (1).

72868337 is an equidigital number, since it uses as much as digits as its factorization.

72868337 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 338688, while the sum is 44.

The square root of 72868337 is about 8536.2952737121. The cubic root of 72868337 is about 417.6825061733.

The spelling of 72868337 in words is "seventy-two million, eight hundred sixty-eight thousand, three hundred thirty-seven".