1989707212 has 24 divisors (see below), whose sum is σ = 3572997120. Its totient is φ = 969052560.

The previous prime is 1989707179. The next prime is 1989707231. The reversal of 1989707212 is 2127079891.

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, 14589 + ... + 64747.

It is an arithmetic number, because the mean of its divisors is an integer number (148874880).

Almost surely, 2^1989707212 is an apocalyptic number.

It is an amenable number.

1989707212 is a deficient number, since it is larger than the sum of its proper divisors (1583289908).

1989707212 is a wasteful number, since it uses less digits than its factorization.

1989707212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50421 (or 50419 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 46.

The square root of 1989707212 is about 44606.1342418282. The cubic root of 1989707212 is about 1257.7559814941.

The spelling of 1989707212 in words is "one billion, nine hundred eighty-nine million, seven hundred seven thousand, two hundred twelve".