685163433 has 4 divisors (see below), whose sum is σ = 913551248. Its totient is φ = 456775620.

The previous prime is 685163417. The next prime is 685163449. The reversal of 685163433 is 334361586.

685163433 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (685163417) and next prime (685163449).

It is not a de Polignac number, because 685163433 - 2⁴ = 685163417 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 685163391 and 685163400.

It is not an unprimeable number, because it can be changed into a prime (685163233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 114193903 + ... + 114193908.

It is an arithmetic number, because the mean of its divisors is an integer number (228387812).

Almost surely, 2^685163433 is an apocalyptic number.

It is an amenable number.

685163433 is a deficient number, since it is larger than the sum of its proper divisors (228387815).

685163433 is a wasteful number, since it uses less digits than its factorization.

685163433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228387814.

The product of its digits is 155520, while the sum is 39.

The square root of 685163433 is about 26175.6266973687. The cubic root of 685163433 is about 881.5860828472.

The spelling of 685163433 in words is "six hundred eighty-five million, one hundred sixty-three thousand, four hundred thirty-three".