65058989 has 2 divisors, whose sum is σ = 65058990. Its totient is φ = 65058988.

The previous prime is 65058953. The next prime is 65058991. The reversal of 65058989 is 98985056.

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., 63329764 + 1729225 = 7958^2 + 1315^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65058989 is a prime.

Together with 65058991, it forms a pair of twin primes.

It is a Chen prime.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65058589) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32529494 + 32529495.

It is an arithmetic number, because the mean of its divisors is an integer number (32529495).

Almost surely, 2^65058989 is an apocalyptic number.

It is an amenable number.

65058989 is a deficient number, since it is larger than the sum of its proper divisors (1).

65058989 is an equidigital number, since it uses as much as digits as its factorization.

65058989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 777600, while the sum is 50.

The square root of 65058989 is about 8065.9152611467. The cubic root of 65058989 is about 402.1941691305.

The spelling of 65058989 in words is "sixty-five million, fifty-eight thousand, nine hundred eighty-nine".