684254712 has 16 divisors (see below), whose sum is σ = 1710636840. Its totient is φ = 228084896.

The previous prime is 684254707. The next prime is 684254713. The reversal of 684254712 is 217452486.

684254712 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (684254713) 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, 14255283 + ... + 14255330.

Almost surely, 2^684254712 is an apocalyptic number.

It is an amenable number.

684254712 is an abundant number, since it is smaller than the sum of its proper divisors (1026382128).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

684254712 is a wasteful number, since it uses less digits than its factorization.

684254712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28510622 (or 28510618 counting only the distinct ones).

The product of its digits is 107520, while the sum is 39.

The square root of 684254712 is about 26158.2627863549. The cubic root of 684254712 is about 881.1961660389.

It can be divided in two parts, 68425 and 4712, that added together give a palindrome (73137).

The spelling of 684254712 in words is "six hundred eighty-four million, two hundred fifty-four thousand, seven hundred twelve".