998266511 has 8 divisors (see below), whose sum is σ = 1112189184. Its totient is φ = 888205720.

The previous prime is 998266499. The next prime is 998266513. The reversal of 998266511 is 115662899.

It is a happy number.

998266511 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 998266511 - 2¹⁰ = 998265487 is a prime.

It is a super-2 number, since 2×998266511² = 1993072053968226242, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (998266513) 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, 964925 + ... + 965958.

It is an arithmetic number, because the mean of its divisors is an integer number (139023648).

Almost surely, 2^998266511 is an apocalyptic number.

998266511 is a deficient number, since it is larger than the sum of its proper divisors (113922673).

998266511 is a wasteful number, since it uses less digits than its factorization.

998266511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1930941.

The product of its digits is 233280, while the sum is 47.

The square root of 998266511 is about 31595.3558454403. The cubic root of 998266511 is about 999.4218361243.

The spelling of 998266511 in words is "nine hundred ninety-eight million, two hundred sixty-six thousand, five hundred eleven".