685487662 has 8 divisors (see below), whose sum is σ = 1082349000. Its totient is φ = 324704664.

The previous prime is 685487657. The next prime is 685487687. The reversal of 685487662 is 266784586.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9019537 + ... + 9019612.

It is an arithmetic number, because the mean of its divisors is an integer number (135293625).

Almost surely, 2^685487662 is an apocalyptic number.

685487662 is a deficient number, since it is larger than the sum of its proper divisors (396861338).

685487662 is a wasteful number, since it uses less digits than its factorization.

685487662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18039170.

The product of its digits is 3870720, while the sum is 52.

The square root of 685487662 is about 26181.8193027146. The cubic root of 685487662 is about 881.7251205741.

The spelling of 685487662 in words is "six hundred eighty-five million, four hundred eighty-seven thousand, six hundred sixty-two".