1285796963 has 8 divisors (see below), whose sum is σ = 1416576816. Its totient is φ = 1157332000.

The previous prime is 1285796929. The next prime is 1285796977. The reversal of 1285796963 is 3696975821.

It is a happy number.

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

It is not a de Polignac number, because 1285796963 - 2¹⁴ = 1285780579 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1285796899 and 1285796908.

It is not an unprimeable number, because it can be changed into a prime (1285796663) 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, 577556 + ... + 579777.

It is an arithmetic number, because the mean of its divisors is an integer number (177072102).

Almost surely, 2^1285796963 is an apocalyptic number.

1285796963 is a deficient number, since it is larger than the sum of its proper divisors (130779853).

1285796963 is a wasteful number, since it uses less digits than its factorization.

1285796963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1157445.

The product of its digits is 4898880, while the sum is 56.

The square root of 1285796963 is about 35858.0111411662. The cubic root of 1285796963 is about 1087.4036803405.

The spelling of 1285796963 in words is "one billion, two hundred eighty-five million, seven hundred ninety-six thousand, nine hundred sixty-three".