662478 has 16 divisors (see below), whose sum is σ = 1357776. Its totient is φ = 215360.

The previous prime is 662477. The next prime is 662483. The reversal of 662478 is 874266.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (662477) 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 7 ways as a sum of consecutive naturals, for example, 1101 + ... + 1592.

It is an arithmetic number, because the mean of its divisors is an integer number (84861).

2⁶⁶²⁴⁷⁸ is an apocalyptic number.

662478 is an abundant number, since it is smaller than the sum of its proper divisors (695298).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

662478 is a wasteful number, since it uses less digits than its factorization.

662478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2739.

The product of its digits is 16128, while the sum is 33.

The square root of 662478 is about 813.9275152002. The cubic root of 662478 is about 87.1747050892.

The spelling of 662478 in words is "six hundred sixty-two thousand, four hundred seventy-eight".