653922 has 24 divisors (see below), whose sum is σ = 1500876. Its totient is φ = 205056.

The previous prime is 653903. The next prime is 653927. The reversal of 653922 is 229356.

653922 is a `hidden beast` number, since 653 + 9 + 2 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 641601 + 12321 = 801^2 + 111^2 .

It is a super-2 number, since 2×653922² = 855227964168, which contains 22 as substring.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 653922.

It is not an unprimeable number, because it can be changed into a prime (653927) by changing a digit.

653922 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 (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 763 + ... + 1374.

2⁶⁵³⁹²² is an apocalyptic number.

653922 is an abundant number, since it is smaller than the sum of its proper divisors (846954).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

653922 is a wasteful number, since it uses less digits than its factorization.

653922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2162 (or 2159 counting only the distinct ones).

The product of its digits is 3240, while the sum is 27.

The square root of 653922 is about 808.6544379400. The cubic root of 653922 is about 86.7977864046.

It can be divided in two parts, 6539 and 22, that added together give a 8-th power (6561 = 3⁸).

The spelling of 653922 in words is "six hundred fifty-three thousand, nine hundred twenty-two".