1988714798 has 16 divisors (see below), whose sum is σ = 3439398240. Its totient is φ = 844763136.

The previous prime is 1988714789. The next prime is 1988714843. The reversal of 1988714798 is 8974178891.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1988714798.

It is a congruent number.

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, 626963 + ... + 630126.

It is an arithmetic number, because the mean of its divisors is an integer number (214962390).

Almost surely, 2^1988714798 is an apocalyptic number.

1988714798 is a deficient number, since it is larger than the sum of its proper divisors (1450683442).

1988714798 is a wasteful number, since it uses less digits than its factorization.

1988714798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1257211.

The product of its digits is 8128512, while the sum is 62.

The square root of 1988714798 is about 44595.0086668901. The cubic root of 1988714798 is about 1257.5468347713.

The spelling of 1988714798 in words is "one billion, nine hundred eighty-eight million, seven hundred fourteen thousand, seven hundred ninety-eight".