818422337 has 2 divisors, whose sum is σ = 818422338. Its totient is φ = 818422336.

The previous prime is 818422333. The next prime is 818422387. The reversal of 818422337 is 733224818.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 517608001 + 300814336 = 22751^2 + 17344^2 .

It is a cyclic number.

It is not a de Polignac number, because 818422337 - 2² = 818422333 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 818422337.

It is not a weakly prime, because it can be changed into another prime (818422333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 409211168 + 409211169.

It is an arithmetic number, because the mean of its divisors is an integer number (409211169).

Almost surely, 2^818422337 is an apocalyptic number.

It is an amenable number.

818422337 is a deficient number, since it is larger than the sum of its proper divisors (1).

818422337 is an equidigital number, since it uses as much as digits as its factorization.

818422337 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 64512, while the sum is 38.

The square root of 818422337 is about 28608.0816728420. The cubic root of 818422337 is about 935.3895017072.

It can be divided in two parts, 8 and 18422337, that multiplied together give a triangular number (147378696 = T₁₇₁₆₈).

The spelling of 818422337 in words is "eight hundred eighteen million, four hundred twenty-two thousand, three hundred thirty-seven".