998963179 has 2 divisors, whose sum is σ = 998963180. Its totient is φ = 998963178.

The previous prime is 998963153. The next prime is 998963243. The reversal of 998963179 is 971369899.

It is a weak prime.

It is an emirp because it is prime and its reverse (971369899) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 998963179 - 2¹³ = 998954987 is a prime.

It is a super-3 number, since 3×998963179³ (a number of 28 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (998933179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499481589 + 499481590.

It is an arithmetic number, because the mean of its divisors is an integer number (499481590).

Almost surely, 2^998963179 is an apocalyptic number.

998963179 is a deficient number, since it is larger than the sum of its proper divisors (1).

998963179 is an equidigital number, since it uses as much as digits as its factorization.

998963179 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6613488, while the sum is 61.

The square root of 998963179 is about 31606.3787707482. The cubic root of 998963179 is about 999.6542734870.

The spelling of 998963179 in words is "nine hundred ninety-eight million, nine hundred sixty-three thousand, one hundred seventy-nine".