685441822 has 32 divisors (see below), whose sum is σ = 1141630560. Its totient is φ = 306685440.

The previous prime is 685441781. The next prime is 685441831. The reversal of 685441822 is 228144586.

It is a happy number.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 108922 + ... + 115042.

It is an arithmetic number, because the mean of its divisors is an integer number (35675955).

Almost surely, 2^685441822 is an apocalyptic number.

685441822 is a deficient number, since it is larger than the sum of its proper divisors (456188738).

685441822 is a wasteful number, since it uses less digits than its factorization.

685441822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6268.

The product of its digits is 122880, while the sum is 40.

The square root of 685441822 is about 26180.9438714497. The cubic root of 685441822 is about 881.7054658656.

The spelling of 685441822 in words is "six hundred eighty-five million, four hundred forty-one thousand, eight hundred twenty-two".