675072389 has 2 divisors, whose sum is σ = 675072390. Its totient is φ = 675072388.

The previous prime is 675072371. The next prime is 675072439. The reversal of 675072389 is 983270576.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 397683364 + 277389025 = 19942^2 + 16655^2 .

It is a cyclic number.

It is not a de Polignac number, because 675072389 - 2⁸ = 675072133 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (675072889) 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, 337536194 + 337536195.

It is an arithmetic number, because the mean of its divisors is an integer number (337536195).

Almost surely, 2^675072389 is an apocalyptic number.

It is an amenable number.

675072389 is a deficient number, since it is larger than the sum of its proper divisors (1).

675072389 is an equidigital number, since it uses as much as digits as its factorization.

675072389 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 635040, while the sum is 47.

The square root of 675072389 is about 25982.1552031389. The cubic root of 675072389 is about 877.2366783756.

It can be divided in two parts, 67507 and 2389, that added together give a palindrome (69896).

The spelling of 675072389 in words is "six hundred seventy-five million, seventy-two thousand, three hundred eighty-nine".