1996856712 has 80 divisors (see below), whose sum is σ = 5785965900. Its totient is φ = 642660480.

The previous prime is 1996856707. The next prime is 1996856717. The reversal of 1996856712 is 2176586991.

1996856712 is a `hidden beast` number, since 1 + 9 + 9 + 68 + 567 + 12 = 666.

It is an interprime number because it is at equal distance from previous prime (1996856707) and next prime (1996856717).

It can be written as a sum of positive squares in 2 ways, for example, as 1724408676 + 272448036 = 41526^2 + 16506^2 .

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (1996856717) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 34339 + ... + 71922.

Almost surely, 2^1996856712 is an apocalyptic number.

1996856712 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1996856712 is an abundant number, since it is smaller than the sum of its proper divisors (3789109188).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1996856712 is a wasteful number, since it uses less digits than its factorization.

1996856712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106308 (or 106295 counting only the distinct ones).

The product of its digits is 1632960, while the sum is 54.

The square root of 1996856712 is about 44686.2027028478. The cubic root of 1996856712 is about 1259.2606546857.

The spelling of 1996856712 in words is "one billion, nine hundred ninety-six million, eight hundred fifty-six thousand, seven hundred twelve".