685229233 has 16 divisors (see below), whose sum is σ = 765296896. Its totient is φ = 609405120.

The previous prime is 685229231. The next prime is 685229291. The reversal of 685229233 is 332922586.

It is a happy number.

685229233 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 685229233 - 2¹ = 685229231 is a prime.

It is not an unprimeable number, because it can be changed into a prime (685229231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42628 + ... + 56458.

It is an arithmetic number, because the mean of its divisors is an integer number (47831056).

Almost surely, 2^685229233 is an apocalyptic number.

It is an amenable number.

685229233 is a deficient number, since it is larger than the sum of its proper divisors (80067663).

685229233 is a wasteful number, since it uses less digits than its factorization.

685229233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13984.

The product of its digits is 155520, while the sum is 40.

The square root of 685229233 is about 26176.8835616465. The cubic root of 685229233 is about 881.6143031251.

The spelling of 685229233 in words is "six hundred eighty-five million, two hundred twenty-nine thousand, two hundred thirty-three".