655491683 has 16 divisors (see below), whose sum is σ = 843601920. Its totient is φ = 494294400.

The previous prime is 655491679. The next prime is 655491703. The reversal of 655491683 is 386194556.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 655491683 - 2² = 655491679 is a prime.

It is not an unprimeable number, because it can be changed into a prime (655491673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 134918 + ... + 139691.

It is an arithmetic number, because the mean of its divisors is an integer number (52725120).

Almost surely, 2^655491683 is an apocalyptic number.

655491683 is a deficient number, since it is larger than the sum of its proper divisors (188110237).

655491683 is a wasteful number, since it uses less digits than its factorization.

655491683 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274658.

The product of its digits is 777600, while the sum is 47.

The square root of 655491683 is about 25602.5718044106. The cubic root of 655491683 is about 868.6718109297.

The spelling of 655491683 in words is "six hundred fifty-five million, four hundred ninety-one thousand, six hundred eighty-three".