655629873 has 16 divisors (see below), whose sum is σ = 880056576. Its totient is φ = 434155520.

The previous prime is 655629869. The next prime is 655629929. The reversal of 655629873 is 378926556.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 655629873 - 2² = 655629869 is a prime.

It is a super-2 number, since 2×655629873² = 859701060739992258, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (655621873) by changing a digit.

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 in 15 ways as a sum of consecutive naturals, for example, 331315 + ... + 333287.

It is an arithmetic number, because the mean of its divisors is an integer number (55003536).

Almost surely, 2^655629873 is an apocalyptic number.

It is an amenable number.

655629873 is a deficient number, since it is larger than the sum of its proper divisors (224426703).

655629873 is a wasteful number, since it uses less digits than its factorization.

655629873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2664.

The product of its digits is 2721600, while the sum is 51.

The square root of 655629873 is about 25605.2704145065. The cubic root of 655629873 is about 868.7328507699.

The spelling of 655629873 in words is "six hundred fifty-five million, six hundred twenty-nine thousand, eight hundred seventy-three".