417927397 has 2 divisors, whose sum is σ = 417927398. Its totient is φ = 417927396.

The previous prime is 417927379. The next prime is 417927421. The reversal of 417927397 is 793729714.

Together with previous prime (417927379) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 416200801 + 1726596 = 20401^2 + 1314^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-417927397 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 417927397.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (417927317) 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 as a sum of consecutive naturals, namely, 208963698 + 208963699.

It is an arithmetic number, because the mean of its divisors is an integer number (208963699).

Almost surely, 2^417927397 is an apocalyptic number.

It is an amenable number.

417927397 is a deficient number, since it is larger than the sum of its proper divisors (1).

417927397 is an equidigital number, since it uses as much as digits as its factorization.

417927397 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 666792, while the sum is 49.

The square root of 417927397 is about 20443.2726587501. The cubic root of 417927397 is about 747.6533449751.

The spelling of 417927397 in words is "four hundred seventeen million, nine hundred twenty-seven thousand, three hundred ninety-seven".