684649230701 has 8 divisors (see below), whose sum is σ = 686865174840. Its totient is φ = 682433640448.

The previous prime is 684649230673. The next prime is 684649230827. The reversal of 684649230701 is 107032946486.

684649230701 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 25144444900 + 659504785801 = 158570^2 + 812099^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 684649230701 - 2¹⁴ = 684649214317 is a prime.

It is a super-2 number, since 2×684649230701² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 684649230701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (684649230301) 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, 4108085 + ... + 4271493.

It is an arithmetic number, because the mean of its divisors is an integer number (85858146855).

Almost surely, 2^684649230701 is an apocalyptic number.

It is an amenable number.

684649230701 is a deficient number, since it is larger than the sum of its proper divisors (2215944139).

684649230701 is a wasteful number, since it uses less digits than its factorization.

684649230701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176943.

The product of its (nonzero) digits is 1741824, while the sum is 50.

The spelling of 684649230701 in words is "six hundred eighty-four billion, six hundred forty-nine million, two hundred thirty thousand, seven hundred one".