648458 has 8 divisors (see below), whose sum is σ = 1004160. Its totient is φ = 313740.

The previous prime is 648449. The next prime is 648481. The reversal of 648458 is 854846.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5168 + ... + 5291.

It is an arithmetic number, because the mean of its divisors is an integer number (125520).

2⁶⁴⁸⁴⁵⁸ is an apocalyptic number.

648458 is a deficient number, since it is larger than the sum of its proper divisors (355702).

648458 is a wasteful number, since it uses less digits than its factorization.

648458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10492.

The product of its digits is 30720, while the sum is 35.

The square root of 648458 is about 805.2688991883. The cubic root of 648458 is about 86.5553567722. Note that the first 3 decimals are identical.

The spelling of 648458 in words is "six hundred forty-eight thousand, four hundred fifty-eight".