685094441 has 6 divisors (see below), whose sum is σ = 727764990. Its totient is φ = 644794496.

The previous prime is 685094437. The next prime is 685094467. The reversal of 685094441 is 144490586.

685094441 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 448550041 + 236544400 = 21179^2 + 15380^2 .

It is not a de Polignac number, because 685094441 - 2² = 685094437 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (685094411) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1184996 + ... + 1185573.

It is an arithmetic number, because the mean of its divisors is an integer number (121294165).

Almost surely, 2^685094441 is an apocalyptic number.

It is an amenable number.

685094441 is a deficient number, since it is larger than the sum of its proper divisors (42670549).

685094441 is a wasteful number, since it uses less digits than its factorization.

685094441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2370603 (or 2370586 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 41.

The square root of 685094441 is about 26174.3087969864. The cubic root of 685094441 is about 881.5564916453.

The spelling of 685094441 in words is "six hundred eighty-five million, ninety-four thousand, four hundred forty-one".