684184089 has 8 divisors (see below), whose sum is σ = 916830400. Its totient is φ = 453830256.

The previous prime is 684184087. The next prime is 684184093. The reversal of 684184089 is 980481486.

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

It is not a de Polignac number, because 684184089 - 2¹ = 684184087 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (684184087) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 572422 + ... + 573615.

It is an arithmetic number, because the mean of its divisors is an integer number (114603800).

Almost surely, 2^684184089 is an apocalyptic number.

It is an amenable number.

684184089 is a deficient number, since it is larger than the sum of its proper divisors (232646311).

684184089 is a wasteful number, since it uses less digits than its factorization.

684184089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1146239.

The product of its (nonzero) digits is 442368, while the sum is 48.

The square root of 684184089 is about 26156.9128338954. The cubic root of 684184089 is about 881.1658484506.

The spelling of 684184089 in words is "six hundred eighty-four million, one hundred eighty-four thousand, eighty-nine".