682712988 has 12 divisors (see below), whose sum is σ = 1592997000. Its totient is φ = 227570992.

The previous prime is 682712971. The next prime is 682712993. The reversal of 682712988 is 889217286.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 682712988.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28446363 + ... + 28446386.

It is an arithmetic number, because the mean of its divisors is an integer number (132749750).

Almost surely, 2^682712988 is an apocalyptic number.

It is an amenable number.

682712988 is an abundant number, since it is smaller than the sum of its proper divisors (910284012).

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

682712988 is a wasteful number, since it uses less digits than its factorization.

682712988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56892756 (or 56892754 counting only the distinct ones).

The product of its digits is 774144, while the sum is 51.

The square root of 682712988 is about 26128.7770092670. Note that the first 3 decimals coincide. The cubic root of 682712988 is about 880.5338479101.

The spelling of 682712988 in words is "six hundred eighty-two million, seven hundred twelve thousand, nine hundred eighty-eight".