684387134 has 8 divisors (see below), whose sum is σ = 1026835488. Its totient is φ = 342108640.

The previous prime is 684387133. The next prime is 684387167. The reversal of 684387134 is 431783486.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (684387133) by changing a digit.

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, 31862 + ... + 48825.

It is an arithmetic number, because the mean of its divisors is an integer number (128354436).

Almost surely, 2^684387134 is an apocalyptic number.

684387134 is a deficient number, since it is larger than the sum of its proper divisors (342448354).

684387134 is a wasteful number, since it uses less digits than its factorization.

684387134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84930.

The product of its digits is 387072, while the sum is 44.

The square root of 684387134 is about 26160.7938335212. The cubic root of 684387134 is about 881.2530075581.

The spelling of 684387134 in words is "six hundred eighty-four million, three hundred eighty-seven thousand, one hundred thirty-four".