684346413 has 8 divisors (see below), whose sum is σ = 937123168. Its totient is φ = 443900304.

The previous prime is 684346409. The next prime is 684346433. The reversal of 684346413 is 314643486.

It is a happy number.

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

It is not a de Polignac number, because 684346413 - 2² = 684346409 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (684346433) 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, 3082531 + ... + 3082752.

It is an arithmetic number, because the mean of its divisors is an integer number (117140396).

Almost surely, 2^684346413 is an apocalyptic number.

It is an amenable number.

684346413 is a deficient number, since it is larger than the sum of its proper divisors (252776755).

684346413 is a wasteful number, since it uses less digits than its factorization.

684346413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6165323.

The product of its digits is 165888, while the sum is 39.

The square root of 684346413 is about 26160.0155389862. The cubic root of 684346413 is about 881.2355290416.

Adding to 684346413 its reverse (314643486), we get a palindrome (998989899).

It can be divided in two parts, 68434 and 6413, that added together give a palindrome (74847).

The spelling of 684346413 in words is "six hundred eighty-four million, three hundred forty-six thousand, four hundred thirteen".