628201417 has 2 divisors, whose sum is σ = 628201418. Its totient is φ = 628201416.

The previous prime is 628201403. The next prime is 628201423. The reversal of 628201417 is 714102826.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 529874361 + 98327056 = 23019^2 + 9916^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-628201417 is a prime.

It is not a weakly prime, because it can be changed into another prime (628201477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 314100708 + 314100709.

It is an arithmetic number, because the mean of its divisors is an integer number (314100709).

Almost surely, 2^628201417 is an apocalyptic number.

It is an amenable number.

628201417 is a deficient number, since it is larger than the sum of its proper divisors (1).

628201417 is an equidigital number, since it uses as much as digits as its factorization.

628201417 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5376, while the sum is 31.

The square root of 628201417 is about 25063.9465567576. The cubic root of 628201417 is about 856.4453134857.

The spelling of 628201417 in words is "six hundred twenty-eight million, two hundred one thousand, four hundred seventeen".