1989462676 has 6 divisors (see below), whose sum is σ = 3481559690. Its totient is φ = 994731336.

The previous prime is 1989462667. The next prime is 1989462679. The reversal of 1989462676 is 6762649891.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1827562500 + 161900176 = 42750^2 + 12724^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1989462676.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1989462679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 248682831 + ... + 248682838.

Almost surely, 2^1989462676 is an apocalyptic number.

It is an amenable number.

1989462676 is a deficient number, since it is larger than the sum of its proper divisors (1492097014).

1989462676 is a wasteful number, since it uses less digits than its factorization.

1989462676 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 497365673 (or 497365671 counting only the distinct ones).

The product of its digits is 7838208, while the sum is 58.

The square root of 1989462676 is about 44603.3930996286. The cubic root of 1989462676 is about 1257.7044531058.

The spelling of 1989462676 in words is "one billion, nine hundred eighty-nine million, four hundred sixty-two thousand, six hundred seventy-six".