66286337 has 8 divisors (see below), whose sum is σ = 71517096. Its totient is φ = 61074432.

The previous prime is 66286333. The next prime is 66286343. The reversal of 66286337 is 73368266.

It can be written as a sum of positive squares in 4 ways, for example, as 42627841 + 23658496 = 6529^2 + 4864^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 66286337 - 2² = 66286333 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 66286294 and 66286303.

It is not an unprimeable number, because it can be changed into a prime (66286333) 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, 3083 + ... + 11919.

It is an arithmetic number, because the mean of its divisors is an integer number (8939637).

Almost surely, 2^66286337 is an apocalyptic number.

It is an amenable number.

66286337 is a deficient number, since it is larger than the sum of its proper divisors (5230759).

66286337 is a wasteful number, since it uses less digits than its factorization.

66286337 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9427.

The product of its digits is 217728, while the sum is 41.

The square root of 66286337 is about 8141.6421562238. The cubic root of 66286337 is about 404.7075814297.

The spelling of 66286337 in words is "sixty-six million, two hundred eighty-six thousand, three hundred thirty-seven".