655996943 has 4 divisors (see below), whose sum is σ = 749710800. Its totient is φ = 562283088.

The previous prime is 655996931. The next prime is 655996951. The reversal of 655996943 is 349699556.

655996943 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 655996943 - 2⁶ = 655996879 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (655996993) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46856918 + ... + 46856931.

It is an arithmetic number, because the mean of its divisors is an integer number (187427700).

Almost surely, 2^655996943 is an apocalyptic number.

655996943 is a deficient number, since it is larger than the sum of its proper divisors (93713857).

655996943 is an equidigital number, since it uses as much as digits as its factorization.

655996943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93713856.

The product of its digits is 7873200, while the sum is 56.

The square root of 655996943 is about 25612.4372717631. The cubic root of 655996943 is about 868.8949474484.

The spelling of 655996943 in words is "six hundred fifty-five million, nine hundred ninety-six thousand, nine hundred forty-three".