998714455 has 4 divisors (see below), whose sum is σ = 1198457352. Its totient is φ = 798971560.

The previous prime is 998714447. The next prime is 998714459. The reversal of 998714455 is 554417899.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 998714455 - 2³ = 998714447 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (998714459) 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 3 ways as a sum of consecutive naturals, for example, 99871441 + ... + 99871450.

It is an arithmetic number, because the mean of its divisors is an integer number (299614338).

Almost surely, 2^998714455 is an apocalyptic number.

998714455 is a deficient number, since it is larger than the sum of its proper divisors (199742897).

998714455 is a wasteful number, since it uses less digits than its factorization.

998714455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199742896.

The product of its digits is 1814400, while the sum is 52.

The square root of 998714455 is about 31602.4438137306. The cubic root of 998714455 is about 999.5713012436.

It can be divided in two parts, 9987 and 14455, that added together give a palindrome (24442).

The spelling of 998714455 in words is "nine hundred ninety-eight million, seven hundred fourteen thousand, four hundred fifty-five".