1988795098 has 8 divisors (see below), whose sum is σ = 2988225108. Its totient is φ = 992720064.

The previous prime is 1988795093. The next prime is 1988795191. The reversal of 1988795098 is 8905978891.

It can be written as a sum of positive squares in 2 ways, for example, as 1797166449 + 191628649 = 42393^2 + 13843^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (1988795093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 837261 + ... + 839632.

Almost surely, 2^1988795098 is an apocalyptic number.

1988795098 is a deficient number, since it is larger than the sum of its proper divisors (999430010).

1988795098 is a wasteful number, since it uses less digits than its factorization.

1988795098 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1677488.

The product of its (nonzero) digits is 13063680, while the sum is 64.

The square root of 1988795098 is about 44595.9089827755. The cubic root of 1988795098 is about 1257.5637602168.

The spelling of 1988795098 in words is "one billion, nine hundred eighty-eight million, seven hundred ninety-five thousand, ninety-eight".