660893 has 2 divisors, whose sum is σ = 660894. Its totient is φ = 660892.

The previous prime is 660887. The next prime is 660899. The reversal of 660893 is 398066.

It is a happy number.

660893 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a balanced prime because it is at equal distance from previous prime (660887) and next prime (660899).

It can be written as a sum of positive squares in only one way, i.e., 643204 + 17689 = 802^2 + 133^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-660893 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (660899) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 330446 + 330447.

It is an arithmetic number, because the mean of its divisors is an integer number (330447).

2⁶⁶⁰⁸⁹³ is an apocalyptic number.

It is an amenable number.

660893 is a deficient number, since it is larger than the sum of its proper divisors (1).

660893 is an equidigital number, since it uses as much as digits as its factorization.

660893 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 660893 is about 812.9532581889. The cubic root of 660893 is about 87.1051268049.

The spelling of 660893 in words is "six hundred sixty thousand, eight hundred ninety-three".