655543828 has 6 divisors (see below), whose sum is σ = 1147201706. Its totient is φ = 327771912.

The previous prime is 655543813. The next prime is 655543831. The reversal of 655543828 is 828345556.

It can be written as a sum of positive squares in only one way, i.e., 647804304 + 7739524 = 25452^2 + 2782^2 .

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 as a sum of consecutive naturals, namely, 81942975 + ... + 81942982.

Almost surely, 2^655543828 is an apocalyptic number.

It is an amenable number.

655543828 is a deficient number, since it is larger than the sum of its proper divisors (491657878).

655543828 is a wasteful number, since it uses less digits than its factorization.

655543828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163885961 (or 163885959 counting only the distinct ones).

The product of its digits is 1152000, while the sum is 46.

The square root of 655543828 is about 25603.5901388848. The cubic root of 655543828 is about 868.6948448810.

The spelling of 655543828 in words is "six hundred fifty-five million, five hundred forty-three thousand, eight hundred twenty-eight".