655979445 has 32 divisors (see below), whose sum is σ = 1272205440. Its totient is φ = 318049920.

The previous prime is 655979419. The next prime is 655979477. The reversal of 655979445 is 544979556.

655979445 is a `hidden beast` number, since 6 + 5 + 597 + 9 + 4 + 45 = 666.

It is not a de Polignac number, because 655979445 - 2⁶ = 655979381 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 655979391 and 655979400.

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 31 ways as a sum of consecutive naturals, for example, 219384 + ... + 222353.

It is an arithmetic number, because the mean of its divisors is an integer number (39756420).

Almost surely, 2^655979445 is an apocalyptic number.

It is an amenable number.

655979445 is a deficient number, since it is larger than the sum of its proper divisors (616225995).

655979445 is a wasteful number, since it uses less digits than its factorization.

655979445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 441762 (or 441756 counting only the distinct ones).

The product of its digits is 6804000, while the sum is 54.

The square root of 655979445 is about 25612.0956776286. The cubic root of 655979445 is about 868.8872217727.

It can be divided in two parts, 655 and 979445, that added together give a square (980100 = 990²).

The spelling of 655979445 in words is "six hundred fifty-five million, nine hundred seventy-nine thousand, four hundred forty-five".