680035624 has 8 divisors (see below), whose sum is σ = 1275066810. Its totient is φ = 340017808.

The previous prime is 680035613. The next prime is 680035627. The reversal of 680035624 is 426530086.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 610979524 + 69056100 = 24718^2 + 8310^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 680035624.

It is not an unprimeable number, because it can be changed into a prime (680035627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42502219 + ... + 42502234.

Almost surely, 2^680035624 is an apocalyptic number.

It is an amenable number.

680035624 is a deficient number, since it is larger than the sum of its proper divisors (595031186).

680035624 is a wasteful number, since it uses less digits than its factorization.

680035624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85004459 (or 85004455 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 34.

The square root of 680035624 is about 26077.4926708838. The cubic root of 680035624 is about 879.3812903066.

It can be divided in two parts, 6800 and 35624, that added together give a palindrome (42424).

The spelling of 680035624 in words is "six hundred eighty million, thirty-five thousand, six hundred twenty-four".