675405349 has 2 divisors, whose sum is σ = 675405350. Its totient is φ = 675405348.

The previous prime is 675405337. The next prime is 675405371. The reversal of 675405349 is 943504576.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 538936225 + 136469124 = 23215^2 + 11682^2 .

It is a cyclic number.

It is not a de Polignac number, because 675405349 - 2⁵ = 675405317 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (675405319) 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, 337702674 + 337702675.

It is an arithmetic number, because the mean of its divisors is an integer number (337702675).

Almost surely, 2^675405349 is an apocalyptic number.

It is an amenable number.

675405349 is a deficient number, since it is larger than the sum of its proper divisors (1).

675405349 is an equidigital number, since it uses as much as digits as its factorization.

675405349 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 453600, while the sum is 43.

The square root of 675405349 is about 25988.5618878768. The cubic root of 675405349 is about 877.3808785737.

The spelling of 675405349 in words is "six hundred seventy-five million, four hundred five thousand, three hundred forty-nine".