70875289 has 2 divisors, whose sum is σ = 70875290. Its totient is φ = 70875288.

The previous prime is 70875251. The next prime is 70875293. The reversal of 70875289 is 98257807.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 37002889 + 33872400 = 6083^2 + 5820^2 .

It is a cyclic number.

It is not a de Polignac number, because 70875289 - 2¹⁵ = 70842521 is a prime.

It is not a weakly prime, because it can be changed into another prime (70875589) 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, 35437644 + 35437645.

It is an arithmetic number, because the mean of its divisors is an integer number (35437645).

Almost surely, 2^70875289 is an apocalyptic number.

It is an amenable number.

70875289 is a deficient number, since it is larger than the sum of its proper divisors (1).

70875289 is an equidigital number, since it uses as much as digits as its factorization.

70875289 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 282240, while the sum is 46.

The square root of 70875289 is about 8418.7462843347. The cubic root of 70875289 is about 413.8391889461.

The spelling of 70875289 in words is "seventy million, eight hundred seventy-five thousand, two hundred eighty-nine".