998539265 has 8 divisors (see below), whose sum is σ = 1198644480. Its totient is φ = 798566512.

The previous prime is 998539261. The next prime is 998539309. The reversal of 998539265 is 562935899.

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 998539265 - 2² = 998539261 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 998539265.

It is not an unprimeable number, because it can be changed into a prime (998539261) 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, 15695 + ... + 47364.

It is an arithmetic number, because the mean of its divisors is an integer number (149830560).

It is a Proth number, since it is equal to 30473 ⋅ 2¹⁵ + 1 and 30473 < 2¹⁵.

Almost surely, 2^998539265 is an apocalyptic number.

It is an amenable number.

998539265 is a deficient number, since it is larger than the sum of its proper divisors (200105215).

998539265 is a wasteful number, since it uses less digits than its factorization.

998539265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66231.

The product of its digits is 5248800, while the sum is 56.

The square root of 998539265 is about 31599.6719128538. The cubic root of 998539265 is about 999.5128510578.

The spelling of 998539265 in words is "nine hundred ninety-eight million, five hundred thirty-nine thousand, two hundred sixty-five".