662798 has 4 divisors (see below), whose sum is σ = 994200. Its totient is φ = 331398.

The previous prime is 662797. The next prime is 662819. The reversal of 662798 is 897266.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 897266 = 2 ⋅448633.

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (662797) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165698 + ... + 165701.

It is an arithmetic number, because the mean of its divisors is an integer number (248550).

2⁶⁶²⁷⁹⁸ is an apocalyptic number.

662798 is a deficient number, since it is larger than the sum of its proper divisors (331402).

662798 is a wasteful number, since it uses less digits than its factorization.

662798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331401.

The product of its digits is 36288, while the sum is 38.

The square root of 662798 is about 814.1240691688. The cubic root of 662798 is about 87.1887389717.

The spelling of 662798 in words is "six hundred sixty-two thousand, seven hundred ninety-eight".