575127989 has 2 divisors, whose sum is σ = 575127990. Its totient is φ = 575127988.

The previous prime is 575127983. The next prime is 575127991. The reversal of 575127989 is 989721575.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 550277764 + 24850225 = 23458^2 + 4985^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-575127989 is a prime.

Together with 575127991, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 575127989.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (575127983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 287563994 + 287563995.

It is an arithmetic number, because the mean of its divisors is an integer number (287563995).

Almost surely, 2^575127989 is an apocalyptic number.

It is an amenable number.

575127989 is a deficient number, since it is larger than the sum of its proper divisors (1).

575127989 is an equidigital number, since it uses as much as digits as its factorization.

575127989 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1587600, while the sum is 53.

The square root of 575127989 is about 23981.8262232049. The cubic root of 575127989 is about 831.6134430906.

The spelling of 575127989 in words is "five hundred seventy-five million, one hundred twenty-seven thousand, nine hundred eighty-nine".