685848190 has 16 divisors (see below), whose sum is σ = 1239334992. Its totient is φ = 273270784.

The previous prime is 685848161. The next prime is 685848199. The reversal of 685848190 is 91848586.

It is a super-2 number, since 2×685848190² = 940775479452552200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (685848199) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 130864 + ... + 136003.

It is an arithmetic number, because the mean of its divisors is an integer number (77458437).

Almost surely, 2^685848190 is an apocalyptic number.

685848190 is a deficient number, since it is larger than the sum of its proper divisors (553486802).

685848190 is a wasteful number, since it uses less digits than its factorization.

685848190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267131.

The product of its (nonzero) digits is 552960, while the sum is 49.

The square root of 685848190 is about 26188.7034806995. The cubic root of 685848190 is about 881.8796727749.

The spelling of 685848190 in words is "six hundred eighty-five million, eight hundred forty-eight thousand, one hundred ninety".