662654 has 8 divisors (see below), whose sum is σ = 997608. Its totient is φ = 330120.

The previous prime is 662647. The next prime is 662657. The reversal of 662654 is 456266.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×662654² = 878220647432, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (662657) 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 3 ways as a sum of consecutive naturals, for example, 449 + ... + 1235.

It is an arithmetic number, because the mean of its divisors is an integer number (124701).

2⁶⁶²⁶⁵⁴ is an apocalyptic number.

662654 is a deficient number, since it is larger than the sum of its proper divisors (334954).

662654 is a wasteful number, since it uses less digits than its factorization.

662654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1210.

The product of its digits is 8640, while the sum is 29.

The square root of 662654 is about 814.0356257560. The cubic root of 662654 is about 87.1824242837.

The spelling of 662654 in words is "six hundred sixty-two thousand, six hundred fifty-four".