680591284 has 12 divisors (see below), whose sum is σ = 1191450400. Its totient is φ = 340176888.

The previous prime is 680591281. The next prime is 680591287. The reversal of 680591284 is 482195086.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (680591281) and next prime (680591287).

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 680591284.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (680591281) 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, 16104 + ... + 40255.

Almost surely, 2^680591284 is an apocalyptic number.

It is an amenable number.

680591284 is a deficient number, since it is larger than the sum of its proper divisors (510859116).

680591284 is a wasteful number, since it uses less digits than its factorization.

680591284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59382 (or 59380 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 43.

The square root of 680591284 is about 26088.1445104860. The cubic root of 680591284 is about 879.6207404971.

It can be divided in two parts, 6805 and 91284, that added together give a palindrome (98089).

The spelling of 680591284 in words is "six hundred eighty million, five hundred ninety-one thousand, two hundred eighty-four".