662247 has 6 divisors (see below), whose sum is σ = 956592. Its totient is φ = 441492.

The previous prime is 662231. The next prime is 662251. The reversal of 662247 is 742266.

It is not a de Polignac number, because 662247 - 2⁴ = 662231 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 662247.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (662227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 36783 + ... + 36800.

It is an arithmetic number, because the mean of its divisors is an integer number (159432).

2⁶⁶²²⁴⁷ is an apocalyptic number.

662247 is a deficient number, since it is larger than the sum of its proper divisors (294345).

662247 is a wasteful number, since it uses less digits than its factorization.

662247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73589 (or 73586 counting only the distinct ones).

The product of its digits is 4032, while the sum is 27.

The square root of 662247 is about 813.7855982997. The cubic root of 662247 is about 87.1645715713.

It can be divided in two parts, 662 and 247, that added together give a palindrome (909).

The spelling of 662247 in words is "six hundred sixty-two thousand, two hundred forty-seven".