662705 has 4 divisors (see below), whose sum is σ = 795252. Its totient is φ = 530160.

The previous prime is 662693. The next prime is 662713. The reversal of 662705 is 507266.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 507266 = 2 ⋅253633.

It can be written as a sum of positive squares in 2 ways, for example, as 388129 + 274576 = 623^2 + 524^2 .

It is not a de Polignac number, because 662705 - 2⁴ = 662689 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66266 + ... + 66275.

It is an arithmetic number, because the mean of its divisors is an integer number (198813).

2⁶⁶²⁷⁰⁵ is an apocalyptic number.

It is an amenable number.

662705 is a deficient number, since it is larger than the sum of its proper divisors (132547).

662705 is a wasteful number, since it uses less digits than its factorization.

662705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132546.

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 662705 is about 814.0669505636. The cubic root of 662705 is about 87.1846608403.

The spelling of 662705 in words is "six hundred sixty-two thousand, seven hundred five".