684074012233 has 4 divisors (see below), whose sum is σ = 684087094468. Its totient is φ = 684060930000.

The previous prime is 684074012231. The next prime is 684074012249. The reversal of 684074012233 is 332210470486.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 332210470486 = 2 ⋅166105235243.

It can be written as a sum of positive squares in 2 ways, for example, as 451588032009 + 232485980224 = 672003^2 + 482168^2 .

It is a cyclic number.

It is not a de Polignac number, because 684074012233 - 2¹ = 684074012231 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (684074012231) 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, 6462366 + ... + 6567367.

It is an arithmetic number, because the mean of its divisors is an integer number (171021773617).

Almost surely, 2^684074012233 is an apocalyptic number.

It is an amenable number.

684074012233 is a deficient number, since it is larger than the sum of its proper divisors (13082235).

684074012233 is a wasteful number, since it uses less digits than its factorization.

684074012233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13082234.

The product of its (nonzero) digits is 193536, while the sum is 40.

The spelling of 684074012233 in words is "six hundred eighty-four billion, seventy-four million, twelve thousand, two hundred thirty-three".