684733225 has 48 divisors (see below), whose sum is σ = 988329600. Its totient is φ = 465075200.

The previous prime is 684733199. The next prime is 684733241. The reversal of 684733225 is 522337486.

It is not a de Polignac number, because 684733225 - 2¹³ = 684725033 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 696084 + ... + 697066.

It is an arithmetic number, because the mean of its divisors is an integer number (20590200).

Almost surely, 2^684733225 is an apocalyptic number.

It is an amenable number.

684733225 is a deficient number, since it is larger than the sum of its proper divisors (303596375).

684733225 is a wasteful number, since it uses less digits than its factorization.

684733225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1170 (or 1165 counting only the distinct ones).

The product of its digits is 241920, while the sum is 40.

The square root of 684733225 is about 26167.4076858981. The cubic root of 684733225 is about 881.4015308732.

The spelling of 684733225 in words is "six hundred eighty-four million, seven hundred thirty-three thousand, two hundred twenty-five".