684548625 has 64 divisors (see below), whose sum is σ = 1240761600. Its totient is φ = 333849600.

The previous prime is 684548593. The next prime is 684548633. The reversal of 684548625 is 526845486.

It is not a de Polignac number, because 684548625 - 2⁵ = 684548593 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 204969 + ... + 208281.

It is an arithmetic number, because the mean of its divisors is an integer number (19386900).

Almost surely, 2^684548625 is an apocalyptic number.

It is an amenable number.

684548625 is a deficient number, since it is larger than the sum of its proper divisors (556212975).

684548625 is a wasteful number, since it uses less digits than its factorization.

684548625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3379 (or 3369 counting only the distinct ones).

The product of its digits is 1843200, while the sum is 48.

The square root of 684548625 is about 26163.8801594870. The cubic root of 684548625 is about 881.3223168862.

The spelling of 684548625 in words is "six hundred eighty-four million, five hundred forty-eight thousand, six hundred twenty-five".