65414989 has 2 divisors, whose sum is σ = 65414990. Its totient is φ = 65414988.

The previous prime is 65414969. The next prime is 65415019. The reversal of 65414989 is 98941456.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43164900 + 22250089 = 6570^2 + 4717^2 .

It is a cyclic number.

It is not a de Polignac number, because 65414989 - 2¹⁷ = 65283917 is a 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 (65414939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32707494 + 32707495.

It is an arithmetic number, because the mean of its divisors is an integer number (32707495).

Almost surely, 2^65414989 is an apocalyptic number.

It is an amenable number.

65414989 is a deficient number, since it is larger than the sum of its proper divisors (1).

65414989 is an equidigital number, since it uses as much as digits as its factorization.

65414989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 311040, while the sum is 46.

The square root of 65414989 is about 8087.9533257803. The cubic root of 65414989 is about 402.9264315338.

The spelling of 65414989 in words is "sixty-five million, four hundred fourteen thousand, nine hundred eighty-nine".