685234532 has 12 divisors (see below), whose sum is σ = 1200003840. Its totient is φ = 342376296.

The previous prime is 685234531. The next prime is 685234547. The reversal of 685234532 is 235432586.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (685234531) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53768 + ... + 65279.

It is an arithmetic number, because the mean of its divisors is an integer number (100000320).

Almost surely, 2^685234532 is an apocalyptic number.

It is an amenable number.

685234532 is a deficient number, since it is larger than the sum of its proper divisors (514769308).

685234532 is a wasteful number, since it uses less digits than its factorization.

685234532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120490 (or 120488 counting only the distinct ones).

The product of its digits is 172800, while the sum is 38.

The square root of 685234532 is about 26176.9847767080. The cubic root of 685234532 is about 881.6165756795.

The spelling of 685234532 in words is "six hundred eighty-five million, two hundred thirty-four thousand, five hundred thirty-two".