1283997962 has 16 divisors (see below), whose sum is σ = 2083217640. Its totient is φ = 590023872.

The previous prime is 1283997961. The next prime is 1283997989. The reversal of 1283997962 is 2697993821.

It can be written as a sum of positive squares in 4 ways, for example, as 1282284481 + 1713481 = 35809^2 + 1309^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1283997898 and 1283997907.

It is not an unprimeable number, because it can be changed into a prime (1283997961) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 101873 + ... + 113780.

Almost surely, 2^1283997962 is an apocalyptic number.

1283997962 is a deficient number, since it is larger than the sum of its proper divisors (799219678).

1283997962 is a wasteful number, since it uses less digits than its factorization.

1283997962 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215897.

The product of its digits is 2939328, while the sum is 56.

The square root of 1283997962 is about 35832.9172968096. The cubic root of 1283997962 is about 1086.8963028355.

The spelling of 1283997962 in words is "one billion, two hundred eighty-three million, nine hundred ninety-seven thousand, nine hundred sixty-two".