66882089 has 8 divisors (see below), whose sum is σ = 67985280. Its totient is φ = 65784096.

The previous prime is 66882083. The next prime is 66882103. The reversal of 66882089 is 98028866.

66882089 = 440² + 441² + ... + 658².

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

It is not a de Polignac number, because 66882089 - 2¹⁶ = 66816553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66882083) 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, 31004 + ... + 33090.

It is an arithmetic number, because the mean of its divisors is an integer number (8498160).

Almost surely, 2^66882089 is an apocalyptic number.

It is an amenable number.

66882089 is a deficient number, since it is larger than the sum of its proper divisors (1103191).

66882089 is a wasteful number, since it uses less digits than its factorization.

66882089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2599.

The product of its (nonzero) digits is 331776, while the sum is 47.

The square root of 66882089 is about 8178.1470395194. The cubic root of 66882089 is about 405.9164108371.

The spelling of 66882089 in words is "sixty-six million, eight hundred eighty-two thousand, eighty-nine".