655892 has 6 divisors (see below), whose sum is σ = 1147818. Its totient is φ = 327944.

The previous prime is 655883. The next prime is 655901. The reversal of 655892 is 298556.

It is an interprime number because it is at equal distance from previous prime (655883) and next prime (655901).

It can be written as a sum of positive squares in only one way, i.e., 456976 + 198916 = 676^2 + 446^2 .

It is an Ulam number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 655892.

It is an unprimeable number.

655892 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81983 + ... + 81990.

It is an arithmetic number, because the mean of its divisors is an integer number (191303).

2⁶⁵⁵⁸⁹² is an apocalyptic number.

It is an amenable number.

655892 is a deficient number, since it is larger than the sum of its proper divisors (491926).

655892 is a wasteful number, since it uses less digits than its factorization.

655892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163977 (or 163975 counting only the distinct ones).

The product of its digits is 21600, while the sum is 35.

The square root of 655892 is about 809.8715947606. The cubic root of 655892 is about 86.8848611203.

The spelling of 655892 in words is "six hundred fifty-five thousand, eight hundred ninety-two".