684489086 has 8 divisors (see below), whose sum is σ = 1027702704. Its totient is φ = 341921520.

The previous prime is 684489073. The next prime is 684489103. The reversal of 684489086 is 680984486.

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 pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 158855 + ... + 163106.

It is an arithmetic number, because the mean of its divisors is an integer number (128462838).

Almost surely, 2^684489086 is an apocalyptic number.

684489086 is a deficient number, since it is larger than the sum of its proper divisors (343213618).

684489086 is a wasteful number, since it uses less digits than its factorization.

684489086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 323026.

The product of its (nonzero) digits is 2654208, while the sum is 53.

The square root of 684489086 is about 26162.7423256814. The cubic root of 684489086 is about 881.2967649780.

The spelling of 684489086 in words is "six hundred eighty-four million, four hundred eighty-nine thousand, eighty-six".