65662089 has 8 divisors (see below), whose sum is σ = 87687360. Its totient is φ = 43705776.

The previous prime is 65662073. The next prime is 65662097. The reversal of 65662089 is 98026656.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 65662089 - 2⁴ = 65662073 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 65662089.

It is not an unprimeable number, because it can be changed into a prime (65662099) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14974 + ... + 18855.

It is an arithmetic number, because the mean of its divisors is an integer number (10960920).

Almost surely, 2^65662089 is an apocalyptic number.

It is an amenable number.

65662089 is a deficient number, since it is larger than the sum of its proper divisors (22025271).

65662089 is a wasteful number, since it uses less digits than its factorization.

65662089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34479.

The product of its (nonzero) digits is 155520, while the sum is 42.

The square root of 65662089 is about 8103.2147324380. The cubic root of 65662089 is about 403.4331350748.

The spelling of 65662089 in words is "sixty-five million, six hundred sixty-two thousand, eighty-nine".