889257013 has 2 divisors, whose sum is σ = 889257014. Its totient is φ = 889257012.

The previous prime is 889257011. The next prime is 889257049. The reversal of 889257013 is 310752988.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 662393169 + 226863844 = 25737^2 + 15062^2 .

It is a cyclic number.

It is not a de Polignac number, because 889257013 - 2¹ = 889257011 is a prime.

Together with 889257011, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (889257011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 444628506 + 444628507.

It is an arithmetic number, because the mean of its divisors is an integer number (444628507).

Almost surely, 2^889257013 is an apocalyptic number.

It is an amenable number.

889257013 is a deficient number, since it is larger than the sum of its proper divisors (1).

889257013 is an equidigital number, since it uses as much as digits as its factorization.

889257013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120960, while the sum is 43.

The square root of 889257013 is about 29820.4126899679. The cubic root of 889257013 is about 961.6324269296.

The spelling of 889257013 in words is "eight hundred eighty-nine million, two hundred fifty-seven thousand, thirteen".