663194 has 16 divisors (see below), whose sum is σ = 1148928. Its totient is φ = 281232.

The previous prime is 663191. The next prime is 663203. The reversal of 663194 is 491366.

663194 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon 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 663194.

It is not an unprimeable number, because it can be changed into a prime (663191) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1592 + ... + 1964.

It is an arithmetic number, because the mean of its divisors is an integer number (71808).

2⁶⁶³¹⁹⁴ is an apocalyptic number.

663194 is a deficient number, since it is larger than the sum of its proper divisors (485734).

663194 is a wasteful number, since it uses less digits than its factorization.

663194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 509.

The product of its digits is 3888, while the sum is 29.

The square root of 663194 is about 814.3672390267. The cubic root of 663194 is about 87.2060996491.

The spelling of 663194 in words is "six hundred sixty-three thousand, one hundred ninety-four".