675742349 has 2 divisors, whose sum is σ = 675742350. Its totient is φ = 675742348.

The previous prime is 675742321. The next prime is 675742357. The reversal of 675742349 is 943247576.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 629257225 + 46485124 = 25085^2 + 6818^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-675742349 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (675742649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 337871174 + 337871175.

It is an arithmetic number, because the mean of its divisors is an integer number (337871175).

Almost surely, 2^675742349 is an apocalyptic number.

It is an amenable number.

675742349 is a deficient number, since it is larger than the sum of its proper divisors (1).

675742349 is an equidigital number, since it uses as much as digits as its factorization.

675742349 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1270080, while the sum is 47.

The square root of 675742349 is about 25995.0447008656. The cubic root of 675742349 is about 877.5267801883.

The spelling of 675742349 in words is "six hundred seventy-five million, seven hundred forty-two thousand, three hundred forty-nine".