655913 has 2 divisors, whose sum is σ = 655914. Its totient is φ = 655912.

The previous prime is 655909. The next prime is 655927. The reversal of 655913 is 319556.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 620944 + 34969 = 788^2 + 187^2 .

It is a cyclic number.

It is not a de Polignac number, because 655913 - 2² = 655909 is a prime.

It is not a weakly prime, because it can be changed into another prime (655943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 327956 + 327957.

It is an arithmetic number, because the mean of its divisors is an integer number (327957).

2⁶⁵⁵⁹¹³ is an apocalyptic number.

It is an amenable number.

655913 is a deficient number, since it is larger than the sum of its proper divisors (1).

655913 is an equidigital number, since it uses as much as digits as its factorization.

655913 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4050, while the sum is 29.

The square root of 655913 is about 809.8845596750. The cubic root of 655913 is about 86.8857883881.

The spelling of 655913 in words is "six hundred fifty-five thousand, nine hundred thirteen".