65000989 has 2 divisors, whose sum is σ = 65000990. Its totient is φ = 65000988.

The previous prime is 65000959. The next prime is 65001019. The reversal of 65000989 is 98900056.

It is a balanced prime because it is at equal distance from previous prime (65000959) and next prime (65001019).

It can be written as a sum of positive squares in only one way, i.e., 64160100 + 840889 = 8010^2 + 917^2 .

It is a cyclic number.

It is not a de Polignac number, because 65000989 - 2¹⁵ = 64968221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65000959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32500494 + 32500495.

It is an arithmetic number, because the mean of its divisors is an integer number (32500495).

Almost surely, 2^65000989 is an apocalyptic number.

It is an amenable number.

65000989 is a deficient number, since it is larger than the sum of its proper divisors (1).

65000989 is an equidigital number, since it uses as much as digits as its factorization.

65000989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19440, while the sum is 37.

The square root of 65000989 is about 8062.3190832415. The cubic root of 65000989 is about 402.0746150782.

The spelling of 65000989 in words is "sixty-five million, nine hundred eighty-nine", and thus it is an aban number.