654662 has 4 divisors (see below), whose sum is σ = 981996. Its totient is φ = 327330.

The previous prime is 654629. The next prime is 654671. The reversal of 654662 is 266456.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

654662 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 163664 + ... + 163667.

It is an arithmetic number, because the mean of its divisors is an integer number (245499).

2⁶⁵⁴⁶⁶² is an apocalyptic number.

654662 is a deficient number, since it is larger than the sum of its proper divisors (327334).

654662 is a wasteful number, since it uses less digits than its factorization.

654662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327333.

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

The square root of 654662 is about 809.1118587686. Note that the first 3 decimals coincide. The cubic root of 654662 is about 86.8305151545.

The spelling of 654662 in words is "six hundred fifty-four thousand, six hundred sixty-two".