662624 has 12 divisors (see below), whose sum is σ = 1304604. Its totient is φ = 331296.

The previous prime is 662617. The next prime is 662639. The reversal of 662624 is 426266.

It is a Smith number, since the sum of its digits (26) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 662593 and 662602.

It is a congruent number.

It is an unprimeable number.

662624 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10322 + ... + 10385.

It is an arithmetic number, because the mean of its divisors is an integer number (108717).

2⁶⁶²⁶²⁴ is an apocalyptic number.

It is an amenable number.

662624 is a deficient number, since it is larger than the sum of its proper divisors (641980).

662624 is a wasteful number, since it uses less digits than its factorization.

662624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20717 (or 20709 counting only the distinct ones).

The product of its digits is 3456, while the sum is 26.

The square root of 662624 is about 814.0171988355. The cubic root of 662624 is about 87.1811086085.

It can be divided in two parts, 66262 and 4, that added together give a palindrome (66266).

The spelling of 662624 in words is "six hundred sixty-two thousand, six hundred twenty-four".