1077665689 has 8 divisors (see below), whose sum is σ = 1104380928. Its totient is φ = 1050971040.

The previous prime is 1077665681. The next prime is 1077665753. The reversal of 1077665689 is 9865667701.

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

It is not a de Polignac number, because 1077665689 - 2³ = 1077665681 is a prime.

It is a super-3 number, since 3×1077665689³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1077665681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 205984 + ... + 211150.

It is an arithmetic number, because the mean of its divisors is an integer number (138047616).

Almost surely, 2^1077665689 is an apocalyptic number.

It is an amenable number.

1077665689 is a deficient number, since it is larger than the sum of its proper divisors (26715239).

1077665689 is an equidigital number, since it uses as much as digits as its factorization.

1077665689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10295.

The product of its (nonzero) digits is 3810240, while the sum is 55.

The square root of 1077665689 is about 32827.8188279392. The cubic root of 1077665689 is about 1025.2458467199.

The spelling of 1077665689 in words is "one billion, seventy-seven million, six hundred sixty-five thousand, six hundred eighty-nine".