655947 has 6 divisors (see below), whose sum is σ = 947492. Its totient is φ = 437292.

The previous prime is 655943. The next prime is 655961. The reversal of 655947 is 749556.

655947 is a `hidden beast` number, since 65 + 594 + 7 = 666.

It is not a de Polignac number, because 655947 - 2² = 655943 is a prime.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 655947.

It is not an unprimeable number, because it can be changed into a prime (655943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 36433 + ... + 36450.

2⁶⁵⁵⁹⁴⁷ is an apocalyptic number.

655947 is a deficient number, since it is larger than the sum of its proper divisors (291545).

655947 is a wasteful number, since it uses less digits than its factorization.

655947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72889 (or 72886 counting only the distinct ones).

The product of its digits is 37800, while the sum is 36.

The square root of 655947 is about 809.9055500489. The cubic root of 655947 is about 86.8872896369.

The spelling of 655947 in words is "six hundred fifty-five thousand, nine hundred forty-seven".