654863 has 8 divisors (see below), whose sum is σ = 734160. Its totient is φ = 578880.

The previous prime is 654853. The next prime is 654877. The reversal of 654863 is 368456.

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

It is a cyclic number.

It is not a de Polignac number, because 654863 - 2⁶ = 654799 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (654803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 398 + ... + 1211.

It is an arithmetic number, because the mean of its divisors is an integer number (91770).

2⁶⁵⁴⁸⁶³ is an apocalyptic number.

654863 is a deficient number, since it is larger than the sum of its proper divisors (79297).

654863 is a wasteful number, since it uses less digits than its factorization.

654863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1657.

The product of its digits is 17280, while the sum is 32.

The square root of 654863 is about 809.2360595030. The cubic root of 654863 is about 86.8394007309.

The spelling of 654863 in words is "six hundred fifty-four thousand, eight hundred sixty-three".