998675243 has 4 divisors (see below), whose sum is σ = 1000760640. Its totient is φ = 996589848.

The previous prime is 998675221. The next prime is 998675263. The reversal of 998675243 is 342576899.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 342576899 = 7 ⋅48939557.

It is a cyclic number.

It is not a de Polignac number, because 998675243 - 2⁶ = 998675179 is a prime.

It is a super-2 number, since 2×998675243² = 1994704481962218098, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (998675213) 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, 1041980 + ... + 1042937.

It is an arithmetic number, because the mean of its divisors is an integer number (250190160).

Almost surely, 2^998675243 is an apocalyptic number.

998675243 is a deficient number, since it is larger than the sum of its proper divisors (2085397).

998675243 is a wasteful number, since it uses less digits than its factorization.

998675243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2085396.

The product of its digits is 3265920, while the sum is 53.

The square root of 998675243 is about 31601.8234125817. The cubic root of 998675243 is about 999.5582191918.

The spelling of 998675243 in words is "nine hundred ninety-eight million, six hundred seventy-five thousand, two hundred forty-three".