684864122 has 8 divisors (see below), whose sum is σ = 1027411776. Its totient is φ = 342393532.

The previous prime is 684864109. The next prime is 684864127. The reversal of 684864122 is 221468486.

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

It is a self number, because there is not a number n which added to its sum of digits gives 684864122.

It is not an unprimeable number, because it can be changed into a prime (684864127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15503 + ... + 40125.

It is an arithmetic number, because the mean of its divisors is an integer number (128426472).

Almost surely, 2^684864122 is an apocalyptic number.

684864122 is a deficient number, since it is larger than the sum of its proper divisors (342547654).

684864122 is a wasteful number, since it uses less digits than its factorization.

684864122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38532.

The product of its digits is 147456, while the sum is 41.

The square root of 684864122 is about 26169.9087121067. The cubic root of 684864122 is about 881.4576916577.

The spelling of 684864122 in words is "six hundred eighty-four million, eight hundred sixty-four thousand, one hundred twenty-two".