655703740 has 12 divisors (see below), whose sum is σ = 1376977896. Its totient is φ = 262281488.

The previous prime is 655703729. The next prime is 655703771. The reversal of 655703740 is 47307556.

It is a self number, because there is not a number n which added to its sum of digits gives 655703740.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16392574 + ... + 16392613.

It is an arithmetic number, because the mean of its divisors is an integer number (114748158).

Almost surely, 2^655703740 is an apocalyptic number.

It is an amenable number.

655703740 is an abundant number, since it is smaller than the sum of its proper divisors (721274156).

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

655703740 is a wasteful number, since it uses less digits than its factorization.

655703740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32785196 (or 32785194 counting only the distinct ones).

The product of its (nonzero) digits is 88200, while the sum is 37.

The square root of 655703740 is about 25606.7127917661. The cubic root of 655703740 is about 868.7654750103.

The spelling of 655703740 in words is "six hundred fifty-five million, seven hundred three thousand, seven hundred forty".