998080865 has 8 divisors (see below), whose sum is σ = 1212858240. Its totient is φ = 788357232.

The previous prime is 998080847. The next prime is 998080873. The reversal of 998080865 is 568080899.

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 998080865 - 2¹⁴ = 998064481 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1262999 + ... + 1263788.

It is an arithmetic number, because the mean of its divisors is an integer number (151607280).

Almost surely, 2^998080865 is an apocalyptic number.

It is an amenable number.

998080865 is a deficient number, since it is larger than the sum of its proper divisors (214777375).

998080865 is a wasteful number, since it uses less digits than its factorization.

998080865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2526871.

The product of its (nonzero) digits is 1244160, while the sum is 53.

The square root of 998080865 is about 31592.4178403616. The cubic root of 998080865 is about 999.3598786654.

The spelling of 998080865 in words is "nine hundred ninety-eight million, eighty thousand, eight hundred sixty-five".