65989241 has 4 divisors (see below), whose sum is σ = 67772772. Its totient is φ = 64205712.

The previous prime is 65989237. The next prime is 65989243. The reversal of 65989241 is 14298956.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 49056016 + 16933225 = 7004^2 + 4115^2 .

It is a cyclic number.

It is not a de Polignac number, because 65989241 - 2² = 65989237 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 65989192 and 65989201.

It is not an unprimeable number, because it can be changed into a prime (65989243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 891710 + ... + 891783.

It is an arithmetic number, because the mean of its divisors is an integer number (16943193).

Almost surely, 2^65989241 is an apocalyptic number.

It is an amenable number.

65989241 is a deficient number, since it is larger than the sum of its proper divisors (1783531).

65989241 is a wasteful number, since it uses less digits than its factorization.

65989241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1783530.

The product of its digits is 155520, while the sum is 44.

The square root of 65989241 is about 8123.3762069721. The cubic root of 65989241 is about 404.1020414237.

The spelling of 65989241 in words is "sixty-five million, nine hundred eighty-nine thousand, two hundred forty-one".