662045 has 4 divisors (see below), whose sum is σ = 794460. Its totient is φ = 529632.

The previous prime is 662029. The next prime is 662047. The reversal of 662045 is 540266.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 540266 = 2 ⋅270133.

It can be written as a sum of positive squares in 2 ways, for example, as 444889 + 217156 = 667^2 + 466^2 .

It is a cyclic number.

It is not a de Polignac number, because 662045 - 2⁴ = 662029 is a prime.

It is a plaindrome in base 14.

It is a self number, because there is not a number n which added to its sum of digits gives 662045.

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 662045.

It is not an unprimeable number, because it can be changed into a prime (662047) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66200 + ... + 66209.

It is an arithmetic number, because the mean of its divisors is an integer number (198615).

2⁶⁶²⁰⁴⁵ is an apocalyptic number.

It is an amenable number.

662045 is a deficient number, since it is larger than the sum of its proper divisors (132415).

662045 is a wasteful number, since it uses less digits than its factorization.

662045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132414.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 662045 is about 813.6614775200. The cubic root of 662045 is about 87.1557082953.

The spelling of 662045 in words is "six hundred sixty-two thousand, forty-five".