662774 has 12 divisors (see below), whose sum is σ = 1156644. Its totient is φ = 284004.

The previous prime is 662773. The next prime is 662789. The reversal of 662774 is 477266.

It is a happy number.

It is a zygodrome in base 6.

It is a self number, because there is not a number n which added to its sum of digits gives 662774.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (662771) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 3284 + ... + 3479.

It is an arithmetic number, because the mean of its divisors is an integer number (96387).

2⁶⁶²⁷⁷⁴ is an apocalyptic number.

662774 is a deficient number, since it is larger than the sum of its proper divisors (493870).

662774 is a wasteful number, since it uses less digits than its factorization.

662774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6779 (or 6772 counting only the distinct ones).

The product of its digits is 14112, while the sum is 32.

The square root of 662774 is about 814.1093292673. The cubic root of 662774 is about 87.1876865872.

The spelling of 662774 in words is "six hundred sixty-two thousand, seven hundred seventy-four".