685763018 has 16 divisors (see below), whose sum is σ = 1047150720. Its totient is φ = 336724800.

The previous prime is 685762999. The next prime is 685763063. The reversal of 685763018 is 810367586.

It is a self number, because there is not a number n which added to its sum of digits gives 685763018.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 142898 + ... + 147618.

It is an arithmetic number, because the mean of its divisors is an integer number (65446920).

Almost surely, 2^685763018 is an apocalyptic number.

685763018 is a deficient number, since it is larger than the sum of its proper divisors (361387702).

685763018 is a wasteful number, since it uses less digits than its factorization.

685763018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6013.

The product of its (nonzero) digits is 241920, while the sum is 44.

The square root of 685763018 is about 26187.0773092379. The cubic root of 685763018 is about 881.8431658793.

The spelling of 685763018 in words is "six hundred eighty-five million, seven hundred sixty-three thousand, eighteen".