684652468 has 6 divisors (see below), whose sum is σ = 1198141826. Its totient is φ = 342326232.

The previous prime is 684652429. The next prime is 684652487. The reversal of 684652468 is 864256486.

It can be written as a sum of positive squares in only one way, i.e., 568917904 + 115734564 = 23852^2 + 10758^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 85581555 + ... + 85581562.

Almost surely, 2^684652468 is an apocalyptic number.

It is an amenable number.

684652468 is a deficient number, since it is larger than the sum of its proper divisors (513489358).

684652468 is a wasteful number, since it uses less digits than its factorization.

684652468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171163121 (or 171163119 counting only the distinct ones).

The product of its digits is 2211840, while the sum is 49.

The square root of 684652468 is about 26165.8645567082. The cubic root of 684652468 is about 881.3668788660.

The spelling of 684652468 in words is "six hundred eighty-four million, six hundred fifty-two thousand, four hundred sixty-eight".