684077613 has 8 divisors (see below), whose sum is σ = 912676800. Its totient is φ = 455765088.

The previous prime is 684077609. The next prime is 684077627. The reversal of 684077613 is 316770486.

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

It is not a de Polignac number, because 684077613 - 2² = 684077609 is a prime.

It is a super-3 number, since 3×684077613³ (a number of 27 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (684077633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66033 + ... + 75686.

It is an arithmetic number, because the mean of its divisors is an integer number (114084600).

Almost surely, 2^684077613 is an apocalyptic number.

It is an amenable number.

684077613 is a deficient number, since it is larger than the sum of its proper divisors (228599187).

684077613 is a wasteful number, since it uses less digits than its factorization.

684077613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143331.

The product of its (nonzero) digits is 169344, while the sum is 42.

The square root of 684077613 is about 26154.8774227676. The cubic root of 684077613 is about 881.1201356647.

The spelling of 684077613 in words is "six hundred eighty-four million, seventy-seven thousand, six hundred thirteen".