73868251 has 2 divisors, whose sum is σ = 73868252. Its totient is φ = 73868250.

The previous prime is 73868233. The next prime is 73868261. The reversal of 73868251 is 15286837.

It is a strong prime.

It is an emirp because it is prime and its reverse (15286837) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 73868251 - 2¹¹ = 73866203 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (73868261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36934125 + 36934126.

It is an arithmetic number, because the mean of its divisors is an integer number (36934126).

Almost surely, 2^73868251 is an apocalyptic number.

73868251 is a deficient number, since it is larger than the sum of its proper divisors (1).

73868251 is an equidigital number, since it uses as much as digits as its factorization.

73868251 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 80640, while the sum is 40.

The square root of 73868251 is about 8594.6641004754. The cubic root of 73868251 is about 419.5843412298.

The spelling of 73868251 in words is "seventy-three million, eight hundred sixty-eight thousand, two hundred fifty-one".