684376106 has 8 divisors (see below), whose sum is σ = 1086950340. Its totient is φ = 322059328.

The previous prime is 684376103. The next prime is 684376139. The reversal of 684376106 is 601673486.

It can be written as a sum of positive squares in 2 ways, for example, as 641355625 + 43020481 = 25325^2 + 6559^2 .

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

It is not an unprimeable number, because it can be changed into a prime (684376103) by changing a digit.

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, 10064321 + ... + 10064388.

Almost surely, 2^684376106 is an apocalyptic number.

684376106 is a deficient number, since it is larger than the sum of its proper divisors (402574234).

684376106 is a wasteful number, since it uses less digits than its factorization.

684376106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20128728.

The product of its (nonzero) digits is 145152, while the sum is 41.

The square root of 684376106 is about 26160.5830592516. The cubic root of 684376106 is about 881.2482741210.

The spelling of 684376106 in words is "six hundred eighty-four million, three hundred seventy-six thousand, one hundred six".