648454 has 8 divisors (see below), whose sum is σ = 983880. Its totient is φ = 320496.

The previous prime is 648449. The next prime is 648481. The reversal of 648454 is 454846.

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

It is an Ulam number.

It is a congruent number.

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, 1644 + ... + 1999.

It is an arithmetic number, because the mean of its divisors is an integer number (122985).

2⁶⁴⁸⁴⁵⁴ is an apocalyptic number.

648454 is a deficient number, since it is larger than the sum of its proper divisors (335426).

648454 is a wasteful number, since it uses less digits than its factorization.

648454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3734.

The product of its digits is 15360, while the sum is 31.

The square root of 648454 is about 805.2664155421. The cubic root of 648454 is about 86.5551788002. Note that the first 3 decimals are identical.

The spelling of 648454 in words is "six hundred forty-eight thousand, four hundred fifty-four".