662635 has 4 divisors (see below), whose sum is σ = 795168. Its totient is φ = 530104.

The previous prime is 662617. The next prime is 662639. The reversal of 662635 is 536266.

662635 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 536266 = 2 ⋅268133.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-662635 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (662639) 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, 66259 + ... + 66268.

It is an arithmetic number, because the mean of its divisors is an integer number (198792).

2⁶⁶²⁶³⁵ is an apocalyptic number.

662635 is a deficient number, since it is larger than the sum of its proper divisors (132533).

662635 is a wasteful number, since it uses less digits than its factorization.

662635 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132532.

The product of its digits is 6480, while the sum is 28.

The square root of 662635 is about 814.0239554215. The cubic root of 662635 is about 87.1815910274.

It can be divided in two parts, 66 and 2635, that added together give a triangular number (2701 = T₇₃).

The spelling of 662635 in words is "six hundred sixty-two thousand, six hundred thirty-five".