75872689 has 2 divisors, whose sum is σ = 75872690. Its totient is φ = 75872688.

The previous prime is 75872677. The next prime is 75872747. The reversal of 75872689 is 98627857.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 73960000 + 1912689 = 8600^2 + 1383^2 .

It is an emirp because it is prime and its reverse (98627857) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 75872689 - 2¹³ = 75864497 is a prime.

It is not a weakly prime, because it can be changed into another prime (75872639) 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, 37936344 + 37936345.

It is an arithmetic number, because the mean of its divisors is an integer number (37936345).

Almost surely, 2^75872689 is an apocalyptic number.

It is an amenable number.

75872689 is a deficient number, since it is larger than the sum of its proper divisors (1).

75872689 is an equidigital number, since it uses as much as digits as its factorization.

75872689 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1693440, while the sum is 52.

The square root of 75872689 is about 8710.4930400064. The cubic root of 75872689 is about 423.3457056476.

The spelling of 75872689 in words is "seventy-five million, eight hundred seventy-two thousand, six hundred eighty-nine".