685161446 has 8 divisors (see below), whose sum is σ = 1037347560. Its totient is φ = 339378928.

The previous prime is 685161437. The next prime is 685161461. The reversal of 685161446 is 644161586.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×685161446³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1600631 + ... + 1601058.

It is an arithmetic number, because the mean of its divisors is an integer number (129668445).

Almost surely, 2^685161446 is an apocalyptic number.

685161446 is a deficient number, since it is larger than the sum of its proper divisors (352186114).

685161446 is a wasteful number, since it uses less digits than its factorization.

685161446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3201798.

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

The square root of 685161446 is about 26175.5887421850. The cubic root of 685161446 is about 881.5852306354.

The spelling of 685161446 in words is "six hundred eighty-five million, one hundred sixty-one thousand, four hundred forty-six".