1685231433 has 8 divisors (see below), whose sum is σ = 2496639200. Its totient is φ = 1123487604.

The previous prime is 1685231411. The next prime is 1685231473. The reversal of 1685231433 is 3341325861.

It is not a de Polignac number, because 1685231433 - 2¹⁰ = 1685230409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1685231473) 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, 31207963 + ... + 31208016.

It is an arithmetic number, because the mean of its divisors is an integer number (312079900).

Almost surely, 2^1685231433 is an apocalyptic number.

It is an amenable number.

1685231433 is a deficient number, since it is larger than the sum of its proper divisors (811407767).

1685231433 is an equidigital number, since it uses as much as digits as its factorization.

1685231433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62415988 (or 62415982 counting only the distinct ones).

The product of its digits is 51840, while the sum is 36.

The square root of 1685231433 is about 41051.5704084509. The cubic root of 1685231433 is about 1190.0170496345.

The spelling of 1685231433 in words is "one billion, six hundred eighty-five million, two hundred thirty-one thousand, four hundred thirty-three".