684467975 has 6 divisors (see below), whose sum is σ = 848740320. Its totient is φ = 547574360.

The previous prime is 684467963. The next prime is 684467983. The reversal of 684467975 is 579764486.

It is not a de Polignac number, because 684467975 - 2⁶ = 684467911 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 684467975.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13689335 + ... + 13689384.

It is an arithmetic number, because the mean of its divisors is an integer number (141456720).

Almost surely, 2^684467975 is an apocalyptic number.

684467975 is a deficient number, since it is larger than the sum of its proper divisors (164272345).

684467975 is a wasteful number, since it uses less digits than its factorization.

684467975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27378729 (or 27378724 counting only the distinct ones).

The product of its digits is 10160640, while the sum is 56.

The square root of 684467975 is about 26162.3388671579. The cubic root of 684467975 is about 881.2877045719.

The spelling of 684467975 in words is "six hundred eighty-four million, four hundred sixty-seven thousand, nine hundred seventy-five".