684572848 has 10 divisors (see below), whose sum is σ = 1326359924. Its totient is φ = 342286416.

The previous prime is 684572843. The next prime is 684572879. The reversal of 684572848 is 848275486.

It is a happy number.

It is a super-2 number, since 2×684572848² = 937279968437662208, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 684572795 and 684572804.

It is not an unprimeable number, because it can be changed into a prime (684572843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21392886 + ... + 21392917.

Almost surely, 2^684572848 is an apocalyptic number.

It is an amenable number.

684572848 is a deficient number, since it is larger than the sum of its proper divisors (641787076).

684572848 is a wasteful number, since it uses less digits than its factorization.

684572848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42785811 (or 42785805 counting only the distinct ones).

The product of its digits is 3440640, while the sum is 52.

The square root of 684572848 is about 26164.3430645602. The cubic root of 684572848 is about 881.3327120662.

The spelling of 684572848 in words is "six hundred eighty-four million, five hundred seventy-two thousand, eight hundred forty-eight".