198239673 has 16 divisors (see below), whose sum is σ = 285753920. Its totient is φ = 121818816.

The previous prime is 198239659. The next prime is 198239729. The reversal of 198239673 is 376932891.

It is not a de Polignac number, because 198239673 - 2⁶ = 198239609 is a prime.

It is a super-2 number, since 2×198239673² = 78597935902293858, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (198232673) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44890 + ... + 49107.

It is an arithmetic number, because the mean of its divisors is an integer number (17859620).

Almost surely, 2^198239673 is an apocalyptic number.

It is an amenable number.

198239673 is a deficient number, since it is larger than the sum of its proper divisors (87514247).

198239673 is a wasteful number, since it uses less digits than its factorization.

198239673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94056.

The product of its digits is 489888, while the sum is 48.

The square root of 198239673 is about 14079.7611130303. The cubic root of 198239673 is about 583.0827466457.

The spelling of 198239673 in words is "one hundred ninety-eight million, two hundred thirty-nine thousand, six hundred seventy-three".