65332989 has 12 divisors (see below), whose sum is σ = 99921276. Its totient is φ = 40993152.

The previous prime is 65332987. The next prime is 65332997. The reversal of 65332989 is 98923356.

It can be written as a sum of positive squares in 2 ways, for example, as 43007364 + 22325625 = 6558^2 + 4725^2 .

It is not a de Polignac number, because 65332989 - 2¹ = 65332987 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65332987) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 213354 + ... + 213659.

It is an arithmetic number, because the mean of its divisors is an integer number (8326773).

Almost surely, 2^65332989 is an apocalyptic number.

It is an amenable number.

65332989 is a deficient number, since it is larger than the sum of its proper divisors (34588287).

65332989 is a wasteful number, since it uses less digits than its factorization.

65332989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 427036 (or 427033 counting only the distinct ones).

The product of its digits is 349920, while the sum is 45.

The square root of 65332989 is about 8082.8824685257. The cubic root of 65332989 is about 402.7580002965.

The spelling of 65332989 in words is "sixty-five million, three hundred thirty-two thousand, nine hundred eighty-nine".