654838 has 4 divisors (see below), whose sum is σ = 982260. Its totient is φ = 327418.

The previous prime is 654827. The next prime is 654839. The reversal of 654838 is 838456.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (654839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 163708 + ... + 163711.

It is an arithmetic number, because the mean of its divisors is an integer number (245565).

2⁶⁵⁴⁸³⁸ is an apocalyptic number.

654838 is a deficient number, since it is larger than the sum of its proper divisors (327422).

654838 is a wasteful number, since it uses less digits than its factorization.

654838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327421.

The product of its digits is 23040, while the sum is 34.

The square root of 654838 is about 809.2206126885. The cubic root of 654838 is about 86.8382956588.

The spelling of 654838 in words is "six hundred fifty-four thousand, eight hundred thirty-eight".