998513351 has 4 divisors (see below), whose sum is σ = 1089287304. Its totient is φ = 907739400.

The previous prime is 998513293. The next prime is 998513353. The reversal of 998513351 is 153315899.

998513351 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 998513351 - 2¹⁸ = 998251207 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 (998513353) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45386960 + ... + 45386981.

It is an arithmetic number, because the mean of its divisors is an integer number (272321826).

Almost surely, 2^998513351 is an apocalyptic number.

998513351 is a deficient number, since it is larger than the sum of its proper divisors (90773953).

998513351 is a wasteful number, since it uses less digits than its factorization.

998513351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90773952.

The product of its digits is 145800, while the sum is 44.

The square root of 998513351 is about 31599.2618742907. The cubic root of 998513351 is about 999.5042045608.

The spelling of 998513351 in words is "nine hundred ninety-eight million, five hundred thirteen thousand, three hundred fifty-one".