655703628 has 24 divisors (see below), whose sum is σ = 1531488000. Its totient is φ = 218351760.

The previous prime is 655703563. The next prime is 655703641. The reversal of 655703628 is 826307556.

655703628 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 655703628.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14128 + ... + 38871.

It is an arithmetic number, because the mean of its divisors is an integer number (63812000).

Almost surely, 2^655703628 is an apocalyptic number.

It is an amenable number.

655703628 is an abundant number, since it is smaller than the sum of its proper divisors (875784372).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

655703628 is a wasteful number, since it uses less digits than its factorization.

655703628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54037 (or 54035 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 42.

The square root of 655703628 is about 25606.7106048395. The cubic root of 655703628 is about 868.7654255460.

The spelling of 655703628 in words is "six hundred fifty-five million, seven hundred three thousand, six hundred twenty-eight".