1285327683 has 10 divisors (see below), whose sum is σ = 1920057524. Its totient is φ = 856885068.

The previous prime is 1285327679. The next prime is 1285327733. The reversal of 1285327683 is 3867235821.

It is not a de Polignac number, because 1285327683 - 2² = 1285327679 is a prime.

It is a super-2 number, since 2×1285327683² = 3304134505372296978, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1285327633) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 7934041 + ... + 7934202.

Almost surely, 2^1285327683 is an apocalyptic number.

1285327683 is a deficient number, since it is larger than the sum of its proper divisors (634729841).

1285327683 is an equidigital number, since it uses as much as digits as its factorization.

1285327683 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15868255 (or 15868246 counting only the distinct ones).

The product of its digits is 483840, while the sum is 45.

The square root of 1285327683 is about 35851.4669574343. The cubic root of 1285327683 is about 1087.2713735799.

The spelling of 1285327683 in words is "one billion, two hundred eighty-five million, three hundred twenty-seven thousand, six hundred eighty-three".