66739337 has 8 divisors (see below), whose sum is σ = 76391616. Its totient is φ = 57116592.

The previous prime is 66739319. The next prime is 66739339. The reversal of 66739337 is 73393766.

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 66739337 - 2⁸ = 66739081 is a prime.

It is not an unprimeable number, because it can be changed into a prime (66739339) 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, 2303 + ... + 11780.

It is an arithmetic number, because the mean of its divisors is an integer number (9548952).

Almost surely, 2^66739337 is an apocalyptic number.

It is an amenable number.

66739337 is a deficient number, since it is larger than the sum of its proper divisors (9652279).

66739337 is a wasteful number, since it uses less digits than its factorization.

66739337 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14767.

The product of its digits is 428652, while the sum is 44.

The square root of 66739337 is about 8169.4147281185. The cubic root of 66739337 is about 405.6274114195.

It can be divided in two parts, 66739 and 337, that added together give a palindrome (67076).

The spelling of 66739337 in words is "sixty-six million, seven hundred thirty-nine thousand, three hundred thirty-seven".