658313989 has 2 divisors, whose sum is σ = 658313990. Its totient is φ = 658313988.

The previous prime is 658313987. The next prime is 658314011. The reversal of 658313989 is 989313856.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 508863364 + 149450625 = 22558^2 + 12225^2 .

It is a cyclic number.

It is not a de Polignac number, because 658313989 - 2¹ = 658313987 is a prime.

It is a super-3 number, since 3×658313989³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

Together with 658313987, 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 (658313987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 329156994 + 329156995.

It is an arithmetic number, because the mean of its divisors is an integer number (329156995).

Almost surely, 2^658313989 is an apocalyptic number.

It is an amenable number.

658313989 is a deficient number, since it is larger than the sum of its proper divisors (1).

658313989 is an equidigital number, since it uses as much as digits as its factorization.

658313989 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1399680, while the sum is 52.

The square root of 658313989 is about 25657.6302296218. The cubic root of 658313989 is about 869.9167529454.

The spelling of 658313989 in words is "six hundred fifty-eight million, three hundred thirteen thousand, nine hundred eighty-nine".