980665895 has 8 divisors (see below), whose sum is σ = 1283780880. Its totient is φ = 713211520.

The previous prime is 980665891. The next prime is 980665901. The reversal of 980665895 is 598566089.

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

It is not a de Polignac number, because 980665895 - 2² = 980665891 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 980665895.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (980665891) 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, 8915090 + ... + 8915199.

It is an arithmetic number, because the mean of its divisors is an integer number (160472610).

Almost surely, 2^980665895 is an apocalyptic number.

980665895 is a deficient number, since it is larger than the sum of its proper divisors (303114985).

980665895 is a wasteful number, since it uses less digits than its factorization.

980665895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17830305.

The product of its (nonzero) digits is 4665600, while the sum is 56.

The square root of 980665895 is about 31315.5854966820. The cubic root of 980665895 is about 993.5133121950.

The spelling of 980665895 in words is "nine hundred eighty million, six hundred sixty-five thousand, eight hundred ninety-five".