198127970 has 16 divisors (see below), whose sum is σ = 366269688. Its totient is φ = 77109120.

The previous prime is 198127931. The next prime is 198127981. The reversal of 198127970 is 79721891.

It can be written as a sum of positive squares in 4 ways, for example, as 166126321 + 32001649 = 12889^2 + 5657^2 .

It is a super-3 number, since 3×198127970³ (a number of 26 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 267371 + ... + 268110.

Almost surely, 2^198127970 is an apocalyptic number.

198127970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

198127970 is a deficient number, since it is larger than the sum of its proper divisors (168141718).

198127970 is a wasteful number, since it uses less digits than its factorization.

198127970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 535525.

The product of its (nonzero) digits is 63504, while the sum is 44.

The square root of 198127970 is about 14075.7937609216. The cubic root of 198127970 is about 582.9732086501.

The spelling of 198127970 in words is "one hundred ninety-eight million, one hundred twenty-seven thousand, nine hundred seventy".