680019546 has 8 divisors (see below), whose sum is σ = 1360039104. Its totient is φ = 226673180.

The previous prime is 680019539. The next prime is 680019551. The reversal of 680019546 is 645910086.

It is a sphenic number, since it is the product of 3 distinct primes.

680019546 is an admirable number.

It is a super-2 number, since 2×680019546² = 924853165884092232, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56668290 + ... + 56668301.

It is an arithmetic number, because the mean of its divisors is an integer number (170004888).

Almost surely, 2^680019546 is an apocalyptic number.

680019546 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

680019546 is a wasteful number, since it uses less digits than its factorization.

680019546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113336596.

The product of its (nonzero) digits is 51840, while the sum is 39.

The square root of 680019546 is about 26077.1843955593. The cubic root of 680019546 is about 879.3743598835.

The spelling of 680019546 in words is "six hundred eighty million, nineteen thousand, five hundred forty-six".