684307798 has 8 divisors (see below), whose sum is σ = 1040919120. Its totient is φ = 337334760.

The previous prime is 684307787. The next prime is 684307823. The reversal of 684307798 is 897703486.

It is a happy number.

684307798 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2409393 + ... + 2409676.

It is an arithmetic number, because the mean of its divisors is an integer number (130114890).

Almost surely, 2^684307798 is an apocalyptic number.

684307798 is a deficient number, since it is larger than the sum of its proper divisors (356611322).

684307798 is a wasteful number, since it uses less digits than its factorization.

684307798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4819142.

The product of its (nonzero) digits is 2032128, while the sum is 52.

The square root of 684307798 is about 26159.2774747316. The cubic root of 684307798 is about 881.2189538348.

The spelling of 684307798 in words is "six hundred eighty-four million, three hundred seven thousand, seven hundred ninety-eight".